JPH03169480A - High temperature gas soldering system - Google Patents

Abstract

PURPOSE: To heat a desired position without affecting heat on the other part by constituting a composite hose which connects a pedestal housing body to the handle part of a soldering tool, of a conductive means and a high temperature gas carrier body. CONSTITUTION: A composite feeding line 16 which connects a pedestal housing body 20 to the handle 36 of a soldering tool 12 is constituted of a connector cord 68 which carries four lead wires 62, 64, 66, 50 disposed within the composite feeding line 16 and a gas feeding pipe 72. Whereby, when high temperature soldering by the flow of an extremely high temperature gas in a very small cross-sectional area is executed, heat is fed to a desired position without exercising the harmful influence of heat on the other part of an adjacent or continuous material or object.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates generally to hand-held soldering/de-soldering tools, and more particularly to hand-held soldering/de-soldering tools for conveying heat from a heat source along at least a portion of a path to a soldering location. The term "hand-held," with reference to instruments that use a gas flow, includes those intended for robotic or robotic use.
"Gas" usually refers to ambient air, such as carbon dioxide or nitrogen, or other noble gases whose corrosive or other undesired chemical reactions when oxidized are minimized. Inert or relatively inert gases may be included.

[Description of conventional technology]

The advantages of high temperature gas soldering have recently become known. The details are the applicant's current application number 47.
, No. 771. The parent application of this application, Application No. 471.097, has been abandoned.

Both applications are titled "High Temperature Air Soldering Tool." Here, hot gas soldering with a very hot gas flow in a very small cross-sectional area can be carried out precisely at the desired point of action without adverse thermal effects on adjacent or continuous materials or other parts of the object. Suffice it to say that one can apply the exact amount of heat desired. In addition, the gas flow presents a substantially constant temperature heat source at the working location. Unlike a conventional soldering tip, its temperature exhibits somewhat inherent fluctuations as varying amounts of heat are extracted therefrom and then replenished along the metal conductive path. A related benefit is that the gas is immediately heated as it flows across the heat source in heat exchange relationship and is immediately applied to the working location. Conventional soldering tools, on the other hand, have a significant degree of thermal inertness, and heat is only transferred through the solid parts of the tool once the operating temperature is reached at the tip, which is often located somewhat far from the heat source. be done.

It may also be noted that with hot gas technology, the inside of a thin-walled, low-inertness soldering tip can be heated by directing a hot gas flow from the inside to provide most of the above benefits.

Furthermore, the soldering action is similar to that of conventional soldering. However, since copper is not required due to its high thermal conductivity, it may be desirable for the soldering tip to be ferrous. In this way, not only the weight and cost of copper and its plating, but also the high corrosivity due to chemical reactions, which are exacerbated by the intense thermal environment, are avoided.

These and other benefits of hot gas soldering are not achieved because of the difficulties in the prior art in generating the gas flow, heating it sufficiently, and shaping and directing it to the working location. I couldn't.

OBJECTS OF THE INVENTION Accordingly, it is an object of the present invention to provide an improved hot gas soldering system.

[Summary of the Invention] According to the present invention, there is provided a pedestal housing body, a power supply means carried inside the pedestal housing body for activating a soldering gas heater, and a power supply means carried by the pedestal housing body and electrically remotely controlled. a temperature control circuit; a gas supply flow control means carried by the pedestal housing body; a soldering tool holding means carried by the pedestal housing body; a handle portion; a power supply means carried by the handle portion; an electric heating element coupled to the temperature control circuit; gas heating means coupled to the gas supply flow control means for transferring heat from the electric heating element to the gas; A soldering gas jet forming means connected to the gas heating means for injecting heat into the determined soldering position, a composite hose connecting the pedestal housing body and the handle portion, and an interior of the composite hose. electrical conductor means arranged, said composite hose also forming a carrier for said gas from said pedestal housing body to a hot gas soldering tool; and an electrical conductor disposed within said composite hose. A hot gas soldering tool is provided that includes means.

[Explanation of Examples]

Specific examples of the present invention illustrated in FIGS. 1, 2, and 3 are as follows:
It comprises a pedestal unit 10, a hand-held soldering tool l2 with a hot gas tip 14, and an interconnecting supply line l6 for delivering electrical wire and gas to the soldering tool l2. A removable insulated protective holder 18 for the soldering tool l2 is shown attached to the pedestal housing 20 by a central one of the three mating slip-on brackets 22, 23, 24. Alternatively, a pair of tools (not shown) may be attached to a pair of holders 1.
8 and two outer brackets 22 and 24 may be used to hold it by the pedestal housing.

The pedestal housing 20 has a power input terminal 26, an auxiliary parallel power output terminal 28, a gas supply terminal 30 that can be coupled to an air compressor or other pressurized gas source (not shown), a gas supply output terminal 32, and an electrical output terminal 34. Also carries.

Gas supply output terminal 32 and electrical output terminal 34 are coupled to a common cord/port of supply line 16 which is ultimately coupled to handle 36 of soldering tool 12, as shown in FIG.

A pressure control unit 38 for controlling the gas flow to the soldering tool 12 is housed within the base housing 20 . The pressure control unit 38 includes an on-off valve 40, a regulator control body 42, and an output pressure meter 43. Electrical circuit board 44 receives power from an external power source via power input terminal 26 and a pair of inner conductors 46,48.

An associated ground conductor 50 couples the power input terminal 26, the electrical circuit board 44, the electrical output terminal 34, and ultimately the exposed metal portions of the soldering tool 12 to the external power source ground. Numbers 50 and 50' are always referred to throughout this description to indicate conductors that are earthed or that connect between items to be earthed.

The electrical circuit of the electrical circuit board 44 in this embodiment includes an alternating current inflection point applied to measure the resistance of the electrical heating element and the magnitude of the electrical resistance as a function of its temperature. By using a very short period of time, the temperature of the electric heating element of the soldering tool 12 can be controlled remotely. A signal is generated representing the instantaneous resistance value. The signal is used in feedback sensing to control current to cause the heating element to maintain a predetermined desired temperature. Thus, substantially all of the power is continuously applied to the heating element when there is no separate sensor on the soldering tip and no separate conductor is used for the temperature feedback signal. Such techniques and applications are described in US Pat. Nos. 4,507,546 and 4,734,559. A single control 52 is used for turning on/off and setting the soldering tip. A pilot bulb 54 is shown for indicating the activated state of the electrical circuit. When power is actually supplied to the heating element, the different "on" modes are identified, for example, by the flashing of said pilot lamp 54. To complete the description of the pedestal unit 10 and pedestal housing 20, it will be noted that a tip cleaning sponge 56 and tank 58 moistened with water or other cleaning fluid are shown at its forward end. A small tool tray 60 as shown may be provided for holding items such as spare tips, tip wrenches, etc. The pedestal unit is molded from a relatively high-density impact-resistant plastic mold, preferably carbon-filled to prevent static charge build-up, and otherwise suitably conductive.

Referring to FIG. 4, cable connectors 34 and 4 are provided for mating with electrical output terminals 34 of pedestal housing 20.
A composite feed line 16 is shown carrying a book conductor. Two of these four conductors are electrical wires 62, 64, one is an optical fiber conductor 66, and the other is a bare ground wire 50'. These four conductors extend along connector cord 68 to Y-junction fitting 70. A gas supply pipe 72 for connection to the gas supply output terminal 32 by a coupler 74 is coupled to the Y-junction fitting 70 . Connector cord 68 blocks gas flow therethrough. A Y-junction fitting 70 connects the gas supply pipe 72 to the composite supply line 1G, so that gas from the pressure control unit 38 passes through the hollow interior of the composite supply line 16 into the interior of the handle 36 of the soldering tool 12. transported.

An enlarged diameter retaining push 76 is pushed into the end of the composite supply line 16 within the handle 36 and locks the composite supply line 16 to the soldering tool. The four conductors are a composite supply line l6 including electrical and optical ones.
carried internally, which readily provides the characteristics of a conductor that is suitably insulated, flexible, and mechanically protected. Additionally, the material of composite supply line 16 may be sufficiently loaded or coated to prevent static charge build-up.

It is important to note that two effects exist as gas flows through the composite supply line 16. That is, 1) the high and harmful potentials caused by the buildup of static electricity that would otherwise be caused by the flow of gas across the dielectric material therein are effectively channeled by the bare ground wire 50'; , and 2
) The composite supply line 16 is preheated somewhat by gas flow over the bent wires 62, 64 due to inherent I''R losses.

A finger guard 78 is disposed surrounding the front portion of the handle 36. The finger guard 78 includes a large diameter forward flange portion 80 having a central opening through which a bottom plug body 82 of a heater assembly 84 passes. A skirt portion 86 is formed integrally and concentrically with the forward flange portion 80 and extends rearwardly therefrom beyond the forward portion of the handle 36. An annular gap is provided between the outer surface of the handle and the skirt portion to insulate the finger guard and provide further cooling for the operator by flow of pressurized gas therethrough from the brenum inside the handle 36. provided. Details of the actual flow path are shown in subsequent drawings. The bottom blug body 82 has an enlarged diameter retention shoulder 88 disposed within the finger guard, with a resilient O-ring 90 disposed in compression behind the forward flange portion 80 and between the retention shoulder 88. will be established. The rearward portion of the retaining shoulder 88 of the bottom plug body 82 is disposed within the forward end of the handle 36, except for a pair of mating tabs 92 and notches 94 for rotational resistance on each of these elements. The assembly includes a pair of diametrically opposed locking tabs 96 and skirt portion 86 molded onto the outside of handle 36.
are held together by a matching set of slotted holes 98 formed in the inner surface of the. When the set of tabs 92 and notches 94 are aligned, the handle 36 is pushed forward against the rear of the retaining shoulder 88 which eventually causes the locking tabs 96 to lock forward flange portion 80 in their respective positions. Compress O-ring 90 until it snaps into slot 98 . The assembly is separated by pushing the plastic, deformable skirt portion 86 radially inward at a pair of diametrically opposed locations on the skirt portion 86 at 90° angularly from the slot 98. It is possible.

Other elements of the heater assembly 84 illustrated in FIG.
03, the rear end of the ceramic heater cylinder 104 with one of the electrodes 62'' and 64°, and sealing the end of the cylinder against air flow through the cylinder, thereby blocking the optical fiber. Some silastic botting material 106 to hold the conductors 66. Referring to Figure 5, the heater assembly of this embodiment is shown with a metal sheath 102 at the front end.

The front end of the metal sheath 102 terminates in a reduced diameter section with a brace groove 108 shown on both the inner and outer surfaces. A retaining push 110 has a large diameter portion 1 in front thereof.
12 is screwed into the press-forming groove 108 until it closely contacts the end of the metal sheath 102. A central hole 114 retains the forward enlarged end 116 of the gas circulation tube 118. Grooved nozzle tip 120 as an example of tip l4 shown in FIG.
is shown threaded on the outside of the press-formed groove 108 to hold the flanged gas circulation tube 118 tightly within the retaining push 110.

Most of the length of the gas circulation tube 118 is surrounded by a fibrous element that facilitates heat exchange, in the form of a metal spring l2l wrapped tightly around its outer surface. This part of the gas circulation tube 118 is connected to the ceramic heater cylinder 1
04, which is then glazed with a very thin glass or ceramic thermal barrier coating, and of the type available from Kyocera, Japan, under product number F1495. The ceramic heater cylinder 104 is disposed within the front end of the ceramic heater cylinder 104 .

Around the periphery of the ceramic heater cylinder 104, a second heat exchange fibrous element in the form of a metal tape 124 tightly surrounds its outer surface in continuity with the electric heating element 122.

The metal sheath 102 surrounds the ceramic heater cylinder and provides a cylindrical annular heating chamber l25 and a passage for the soldering gas. gas flow arrow 12
As shown by 6, gas from the inner brenum of the handle crosses a metal tab 124 to an annular heating chamber 125 to facilitate heat extraction as described below.
and then ceramic heater cylinder 1
04 and back along the inner annular chamber 129 over the spring-like element 121 for further turbulence and heat extraction from the ceramic heater cylinder 104 and then through the interior of the gas circulation tube 118. It flows forward again and finally exits forward through the hole 130 in the grooved nozzle tip 120.

Referring to FIG. 6, a more detailed view of the handle 36 and heater assembly 84 is shown along with an alternative tip arrangement configuration. A ceramic heater cylinder 104 is shown with a 62 degree enlarged view of one end thereof, with a plug 106 made of silastic material disposed at the rearward end. Fiber optic leads 66 and electrical wires 62, 64 are shown schematically with bare ground wire 50' extending rearwardly from ceramic heater cylinder 104. An annular smoothing ring 132 centers the ceramic heater cylinder 104 within the bottom plug body 82 and a second volume of silastic material serves as a retaining plug to seal the ceramic heater cylinder 104 to the bottom plug body 82. 1
form 34.

The metal sheath 102 is press-fitted within the forward portion of the bottom plug body and is held fixed therein by its enlarged end 136. Gas communication between the annular heating chamber 125 and the inner blemish of the handle 36 is provided by holes 138 extending radially within the wall of the bottom plug body 82 . Gas flow between the inner brenum and the annular space between the skirt portion 86 of the finger guard 78 and the outer surface of the handle 36 connects the bottom plug body 82 and the handle 36.
provided by an axial annular gap 140 between the front ends of the retaining shoulders 88 and 6; The forward end of the handle 36 is maintained by a further extending tab 92 contacting a shorter notch 94 (see FIG. 4) in the handle 36.

In this embodiment, a fiber optic wire 66 extending from a light source 66' in electrical circuit board 44 terminates in a lens 142 for projecting light forwardly along the center hole of the soldering tool. This allows the light beam to be directed normally to the working position,
Indicates the location of hot gas injection into the workpiece for the operator.

This feature can be understood by considering the basic hot gas nozzle tip arrangement shown in FIG. 5, since FIG. 6 shows a different arrangement. The central hole has a solid tip 1 held in place by a retaining nut 146 threaded into a press-formed groove 108 in the metal sheath 102.
44. A retaining shoulder 148 extends inside the retaining nut 146 .
46, which extends outwardly on the body of 46. The retaining nut 146 is rotated over the stamped groove 108 until the bottom end of the tip is pressed tightly against a collar 152 secured on the elongated gas circulator tube 154 . Gas circulator tube 154 extends well within the heater portion of ceramic heater cylinder 104 and concentrically extends forwardly within a large central bore 156 in tip 144 . The large central hole 156 extends axially forward through the end of the ceramic heater cylinder 104 so that hot gas flows through the elongated central hole 155 of the elongated gas circulator tube 154 and exits at its forward end. 144 into the front bottom of the large central hole 156 of the gas circulator tube 154.
and along the annular gap 158 between the large central hole 156 and exit from the radially oriented boat 160.

It should be noted that the front inner surface 147 of the retaining nut 146 has a frusto-conical shape to deflect the expelled gas forward toward the working position. This feature not only provides a means to blow away toxic gases from the entire work area, but can also be used to lightly preheat the entire area of the work location if desired.

This form of the invention allows the tip to function much the same as a conventional soldering tip, but because the heat is carried by a fast gas flow and not conducted through a highly inert metal path. Has the benefit of heating the tip very quickly. Thus, the advanced material may use iron instead of copper and iron-plated copper, thus avoiding the highly undesirable plating process and its cost, as well as the corrosion-prone copper and its weight. It should be noted that a gas-heated tip according to the present invention can be relatively thinner than envisioned by the dimensions of the illustrated tip 144.

FIG. 7 is an enlarged view of a cross section through the tip 144, showing its solid iron body and elongated gas circulator tube 154.
, a central hole 155 providing a central gas flow passageway, and an annular gap 158 between the gas circulator tube 154 and the large central hole 156.

FIG. 8 is a similar cross-sectional view further aft, showing the boat 160 for evacuation and the frusto-conical front inner surface 147 of the retaining nut 146 for directing gas.

FIG. 9 is a similar sectional view further back,
A ceramic heater cylinder 104 is shown with an electric heating element 122 disposed thereon and having a flat metal tape 124 wrapped around it to facilitate heat exchange. Inside the ceramic heater cylinder l04, a gas circulator tube 154, which is similarly wrapped with a spring-like metal spring 121, is disposed concentrically to facilitate heat exchange. FIG. 9 shows three concentric hot gas flow paths in the same direction, namely above the metal table 124 and through the metal sheath 1.
annular heating chamber 12, which is the gap between
5, an inner annular chamber 129 above the metal spring 121 and in the gap between the ceramic heater cylinder 104 and the gas circulator tube 154, and a central hole 155 inside thereof.

Referring to FIG.
Contains 6. The locking tab 96 and slot 98 are shown in cross section and in phantom, respectively. Tabs 92 and notches 94 on bottom plug body 82 and handle 36 are also shown.

A metal sheath is shown just radially inside the bottom blug body 82 and just forward of its enlarged end 136. Also shown here is a grounding lug 103 extending rearwardly from the metal sheath 102. The metal sheath is subsequently disposed over the ceramic heater cylinder 104 and fiber optic lead 66.

11, which is a similar cross-sectional view of FIG. 10 taken just aft of FIG.
8, the rear portion of the bottom plug body 82 filled with silastic material 134, the rear portion of the ceramic heak cylinder 104, and the inner fiber optic conductor 66 are shown.

12, 13, 14, 15 and 16, a series of alternative hot gas soldering tips and their respective circulator tubes are shown.

The combination of FIG. 12 is substantially the same as that shown in FIG. 5, except that the retaining push 110' is integrally formed with the circulator tube 118°. Retention push 110' and circulator tube 118'
．． A metal spring 121 that facilitates heat exchange is held inside the end of the metal sheath 102 by screwing the threaded nozzle tip 120 into the press-formed groove 108 at the front end of the metal sheath 102.

The embodiment shown in FIG. 13 uses an elongated gas circulator tube 154 to direct a well-defined, hot gas flow directly to the working location, instead of heating the rear inner surface of the tip 144. except that it is used
Two examples similar to the example of FIG. 6 are shown. That is, in FIG. 13, the tip 144 has simply been removed from the rear of the retaining nut 146 so that the front end of the gas circulator tube 154 can direct the hot gas directly to the working location. In the other embodiment of FIG. 13, the circulator tube 118° shown in FIG. 12 is combined with a more narrow and smaller diameter forward extension tube 164. The front extension tube 164 has a central retention collar 165.
and a rear portion 166, the rear portion 166 fitting within the circulator tube 118°, the front portion 168 of which is a retainer for use when a particularly thin and precise soldering gas is desired. Extended beyond nut 146.

FIG. 14 shows an embodiment similar to FIG. 6 in an exploded view with retaining push 110 omitted for clarity;
It has a spade or chisel shaped tip 144.

In FIG. 15, the threaded nozzle tip 120 has been replaced with a heavy duty, internally threaded tip 170.

The same structure is illustrated in FIG. 16, but here a special, internally threaded tip 172 has a rectangular oven configuration, allowing hot gases to access surface-mounted circuit board devices. When placed in the same manner, it will flow over its peripheral edge 174. At this tip all soldering terminals for such surface mounted devices are soldered,
That is, it can be melted at once to facilitate its soldering on a circuit board.

Referring to FIG. 17, the basic structure shown in FIG. 1 is shown. However, a number of additional or alternative features of hot gas soldering systems are presented that may be considered substantially self-evident. For this purpose a small electric compressor 180 is mounted inside the pedestal housing 20 with an associated control unit 182. electric compressor 180
may be controlled for on-off mode by a toggle switch 40, a foot switch 184, or a contact switch 186 activated by withdrawing the soldering tool 12 from the holder 18. Either of the latter types of control can be used on an "instant contact" basis.

The compressor is thereby activated to provide air flow only when actually desired, thus minimizing power consumption, wear on the compressor mechanical parts, and tool ambient noise. Additionally, in the latter type of control, the filter muffler unit 188 may be carried by the pedestal housing 20, allowing for quieter operation of the compressor.

The use of the input to the compressor as a vacuum source is a key feature of this embodiment of the invention. Vacuum nozzle 192
A vacuum hose 190 terminating at can be used for toxic gas removal at the workpiece location and or for removing solder if desired. For use in such mode, the vacuum nozzle 192 is preferably equipped with a steel wool 191 for collecting coarse pieces of solder and a felt disc 193 for collecting small pieces of solder, molten resin, etc.
including. The pedestal housing 20 is likened to high voltage line power: f,
It may also carry a transformer 194 to convert to 12 or 24 volts to power the compressor, heater, fiber optics, and all control functions.

Although the invention has been described with reference to specific examples, it will be understood that many modifications may be made thereto.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an exemplary hot gas soldering system constructed in accordance with the principles of the present invention. FIG. 2 is a partially enlarged perspective view of the pedestal unit. FIG. 3 is a rear view of the pedestal unit. FIG. 4 is a partially omitted view of the handle portion and its supply cord. FIG. 5 is a partial longitudinal cross-sectional view of the soldering tip. FIG. 6 is a longitudinal sectional view of the handle portion and heater. FIG. 7 is a cross-sectional view of FIG. 6 taken along line 7--7. FIG. 8 is a cross-sectional view of FIG. 6 taken along line 8--8. FIG. 9 is a cross-sectional view of FIG. 6 taken along line 9--9. FIG. 10 is a cross-sectional view of FIG. 6 taken along line 10-10. FIG. 11 is a cross-sectional view of FIG. 6 taken along line 11-11. FIG. 12 is an enlarged perspective view of the soldering tip shown in FIG. 5. FIG. 13 is an enlarged perspective view showing another embodiment of the soldering tip. FIG. 14 is an enlarged perspective view of yet another embodiment of a soldering tip in accordance with the principal principles of the present invention. FIG. 15 is an enlarged perspective view of yet another embodiment of a soldering tip in accordance with the principal principles of the present invention. FIG. 16 is an enlarged perspective view of yet another embodiment of a soldering tip in accordance with the principal principles of the present invention. FIG. 17 is a perspective view illustrating additional and alternative features of the present invention. The names of the main parts in the figure are as follows. 10: Pedestal unit 12: Soldering tool 14: High temperature gas tip 16: Supply line 18: Protective holder 20: Pedestal housing 26: Power input terminal 28: Auxiliary parallel power output terminal 30: Gas supply terminal 32: Gas supply output terminal 34 : Electric output terminal 36: Handle 38: Pressure regulator {Distribution unit 40: On-off valve 42: Regulator control body 43: Output pressure meter 44: Electric circuit board 50: Ground conductor 52: Control body 54: Pilot lamp 56: Tip cleaning Sponge 58: Tank 60: Small tool tray 62, 64: Electric wire 66: Optical fiber conductor 50゛: Bare earth wire 68: Connector cord 70; Y junction fitting 74: Coupler 72: Gas supply pipe 76: Holding push 78 Two finger guard 84: Heater assembly 82: Bottom plug body 80: Front flange portion 86: Skirt portion 88: Retention shoulder 90: Elastic O-ring 92: Tab 94: Notch 96 double locking tab 98: Slot hole 100: Utility groove 102: Metal sheath 103: Grounding lug 104: Ceramic heater cylinder 106: Silastic botting material 108: Breath molding groove 110: Holding push 114: Central hole 118: Gas circulation tube 120: Grooved nozzle tip 122: Electric heating element l24: Metal Tape 125; Annular heating chamber 129: Inner annular chamber 134: Retaining plug 140: Axial annular gap No. 1. 17 Figure

Claims (1)

[Claims] 1. A pedestal housing body, a power supply means supported therein for activating a soldering gas heater, and a temperature control circuit supported by the pedestal housing body and electrically remotely controlled. , a gas supply flow control means carried by said pedestal housing body, a soldering tool holding means carried by said pedestal housing body, a handle portion, said power supply means and said temperature control circuit carried by said handle portion. an electrical heating element coupled to the electrical heating element; and gas heating means coupled to the gas supply flow control means for transferring heat from the electrical heating element to the gas;
a soldering gas jet forming means connected to the gas heating means for projecting the heated gas onto a predetermined soldering location to heat the location; and the pedestal housing body and the handle. a composite hose joining the parts and electrical conductor means disposed within the composite hose, said composite hose also forming a carrier for said gas from said pedestal housing body to a hot gas soldering tool; The high temperature gas soldering tool. 2. The temperature control circuit is characterized by time-sharing the use of the electrical conductor means, whereby said electrical conductor means are periodically used to measure the electrical resistance of the heating element, thereby controlling said temperature control. A hot gas soldering tool as claimed in claim 1, wherein the circuit is adapted to determine its temperature and momentarily adjust the power flowing thereto to maintain it within a predetermined range. 3. The hot gas soldering tool of claim 1, wherein the gas supply flow control means includes operator adjustable adjustment means to select the amount of gas flow to the hot gas soldering tool. 4. The high temperature gas soldering tool according to claim 1, wherein the gas supply flow control means comprises an electrically activated air compressor. 5. A visible light generating means is carried by the pedestal housing body, and an optical fiber conductor is connected thereto, and the optical fiber conductor is disposed within the composite hose and the composite hose to illuminate the soldering work position. 2. A hot gas soldering tool as claimed in claim 1, wherein the hot gas soldering tool extends along the length of and within the conductor means. 6. A hollow cylindrical metal sheath carried by the handle portion and extending forward therefrom and a hollow cylindrical ceramic electric heating element support tube forming the first heating chamber of the gasification heating means. electric heating element support tubes carried in a radially spaced manner within said metal sheath and having electric heating elements disposed on the outer surface of said front end; an inner gas circulator tube extending rearwardly therefrom for the approximate length of the heating element and disposed radially spaced within the hollow cylindrical ceramic heating element support tube so that the an inner gas circulator tube forming a second heating chamber of the gas heating means, and a gas circulator tube for directing gas from the composite hose means along the length of the first heating chamber through the inside of the handle portion; radially inwardly beyond the front end of the heating element support tube, rearwardly along the length of the second heating chamber, radially inwardly beyond the rear end of the inner gas circulator tube, and the soldering operation 2. The hot gas soldering tool of claim 1, further comprising gas flow means coupled to the interior of said handle portion for conveying the tool forwardly into position. 7. The gas heating means comprises a helical fibrous body wrapped around the electric heating element support tube along the length of the first heating chamber to facilitate heat exchange between the heat transfer element and the gas. A high-temperature gas soldering tool according to item 6. 8. The gas heating means comprises a helical fibrous body wrapped around the electric heating element support tube along the length of the second heating chamber to facilitate heat exchange between the heat transfer element and the gas. A high-temperature gas soldering tool according to item 6. 9. The soldering tip is carried by the front end of the metal sheath, which has a hollow interior that is open at the rear and transversely closed at the front to receive the gas flow from the inner gas circulator tube; a soldering surface for projecting the soldering tool, a gas exhaust port disposed at the rear of the front section, and an end of the soldering surface for dissipating spent gas around the soldering tool. A high temperature gas soldering tool according to claim 6. 10. The air compressor has an inlet and a vacuum port, and the hot gas soldering system has a vacuum nozzle containing a removable filter for removing toxic soldering gases and/or molten solder from the workpiece. 5. The hot gas soldering tool of claim 4, further comprising a vacuum hose for coupling said vacuum nozzle to a vacuum port.