JPS6112932A - Ring for spinning machine - Google Patents

Abstract

PURPOSE:A ring for spinning machines, obtained by forming a ceramic, e.g. a carbide, oxide or nitride, having improved abrasion and corrosion resistance, capable of withstanding high temperatures caused in the contact part thereof with a traveler, and having good heat dissipating property without causing traveler seizure. CONSTITUTION:A ring 4, constituted of a flange part 1, ring rail engaging part 2 and drum part 3, etc. from a ceramic, e.g. a carbide such as SiC, TiC or TaC, oxide such as Al2O3, ZrO2, SiO2, TiO2, In2O3, ZnO, Cr2O3, SiO or TiO or nitride such as TiN, TaN, ZrN, AlN, GaN, BN or InN, by for example the casting molding method.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the construction of a ring for a spinning machine that has wear resistance and corrosion resistance.

Conventional technology Conventionally, rings for spinning machines are made of carbon steel and are heat-treated by carburizing and quenching to achieve a surface hardness of Hma 800 to 900.
Curing method i 0.4-0.5 ttts Ic is formed. However, with the above heat treatment method, the life of the ring is
The expansion limit was 8 to 4 years in the cotton spinning field and 1 to 8 years in the synthetic fiber field. The reason for this is that when using carbon steel as the ring material,
This is thought to be due to the fact that the surface hardness of the traveler decreases due to the high temperature generated when sliding on the traveler, which increases the wear of the traveler as the traveler runs. Furthermore, the above-mentioned conventional rings are prone to corrosion, and have problems such as premature peeling and wear due to corrosion and thread breakage.

Means for Solving the Problems The present invention solves the above-mentioned drawbacks.By using ceramics such as carbides, oxides, and nitrides, the present invention improves wear resistance and corrosion resistance, and extends the service life. To provide a ring for a spinning machine that allows stable spinning and good maintenance of yarn quality.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of the main parts of a ring for a spinning machine showing one embodiment of the present invention, including a flange part (1), a ring rail fitting part (
Then, the ring (4) constituting the body is molded into a predetermined shape by casting using a raw material composed of silicon carbide, and is fired at a high temperature to have a hardness of 8000-1500. Forming rings for spinning machines.

In addition, as a ceramic material, silicon carbide has high strength, chemical resistance, and abrasion resistance, and its thermal conductivity is approximately the same value as metal trape 2! 10.1~0.15, 81°O, 16)
Therefore, it is preferable that the heat generated by the traveling of the traveler 2 is easily dissipated, that burnout and abrasion of the traveler are less likely to occur, and that the life of the traveler is extended.

Other ceramic materials include carbides such as TiO and TaO, Al5O1, ZrOs, 810m, 'rio=
, Eng.nsog, Zno.

Ore's, 810. Oxides such as TiO, or TiN, TaN.

Nitrides such as ZrH, All, GaN, BN, and rnN are used. Alternatively, it is also possible to form the ceramic material into a porous material and use it as an oil-filled ring. Additionally, in order to impart smoothness to the ceramic material, lapping or borizing may be applied as necessary.

The rings for spinning machines of the present invention obtained in the above examples were subjected to a wear test under the following conditions using a ring wear tester.

Test conditions Ring: 450 Traveler: Metal traveler 08A8 Spindle rotation: 7000 The results of a comparison with conventional ring B regarding the amount of r, p, and m wear are shown in FIG.

As is clear from the drawings, the amount of wear of the ring (4) of the present invention only gradually increases with the passage of time, and the amount of wear is significantly reduced compared to the conventional ring (2).

Effect of the invention The spinning machine ring of the present invention is made of carbide as described above.

Since it is composed of ceramic materials such as oxides and nitrides,
It can withstand the high temperatures that occur at the contact area with the traveler when running Totsube 2, and its hardness does not decrease, so wear caused by the traveler's surface is greatly reduced, and the heat conduction is high, so it has good heat dissipation. So no burns occur.

Furthermore, since it has a chemically stable crystal structure, it is not subject to corrosion or oxidation, and wear due to corrosion or oxidation is also prevented. Therefore, this invention has excellent effects such as greatly extending the life span.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a ring for a spinning machine which is an embodiment of the present invention, and FIG. 2 is a graph showing a comparison of the amount of wear/wear in an abrasion test. (1) Flange part (ri) Ring rail fitting part 111.
・・・・・・・・・Body part (4)・・・・・・・・・Spinning machine ring Fig. 1 Fig. 2

Claims (1)

[Claims] A ring for a spinning machine characterized by being made of ceramic such as carbide, oxide, or nitride.