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CN105879971A - Material throwing head based on double-liquid metal fusion welding technology and preparation method of material throwing head - Google Patents

Material throwing head based on double-liquid metal fusion welding technology and preparation method of material throwing head Download PDF

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Publication number
CN105879971A
CN105879971A CN201610270313.8A CN201610270313A CN105879971A CN 105879971 A CN105879971 A CN 105879971A CN 201610270313 A CN201610270313 A CN 201610270313A CN 105879971 A CN105879971 A CN 105879971A
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CN
China
Prior art keywords
material throwing
throwing head
cast iron
chromium cast
metal fusion
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610270313.8A
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Chinese (zh)
Other versions
CN105879971B (en
Inventor
荣守范
杨鹏辉
朱永长
焦仁宝
刘会
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Jiamusi University
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Jiamusi University
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Publication date
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Priority to CN201610270313.8A priority Critical patent/CN105879971B/en
Publication of CN105879971A publication Critical patent/CN105879971A/en
Application granted granted Critical
Publication of CN105879971B publication Critical patent/CN105879971B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/28—Shape or construction of beater elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C37/00—Cast-iron alloys
    • C22C37/06—Cast-iron alloys containing chromium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Arc Welding In General (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

The invention discloses a material throwing head based on a double-liquid metal fusion welding technology and a preparation method of the material throwing head. The material throwing head comprises a working face and an assembling part, wherein the working face and the assembling part are connected with each other by a composite interface; the working face is made of vanadium-containing hypereutectic high-chromium cast iron; and the assembling part is made of low alloy steel. The service life of the obtained material throwing head is at least five times longer than that of a high manganese steel material throwing head, and is equivalent to that of an insert casting hard alloy material throwing head, but the preparation cost of the obtained material throwing head is only half of that of the insert casting material throwing head, energy consumption is reduced, and the material throwing head is low-carbon and environmentally friendly. According to detection, the properties of a working part of the obtained material throwing head are as follows: HRC is 65-66, and ak is greater than 3J/cm(2); and the properties of the assembling part are as follows: HRC is 34-38, and ak is greater than 70J/cm (2).

Description

A kind of thrower head based on biliquid metal fusion welding technology and preparation method thereof
Technical field
The present invention relates to thrower head preparation technology field, be specifically related to a kind of based on biliquid metal fusion welding technology Thrower head and preparation method thereof.
Background technology
Vertical impact crusher (sand making machine) is widely used in mine, sandstone, cement, metallurgy, water power work The industries such as journey, broken material diameter is generally below 50mm.Thrower head is the core in Vertical type impacting sand making machine Heart position, its operating mode is severe, while bearing material high-speed impulsive force, suffers abrasive wear, impact wear And corrosive wear on a small quantity.Therefore, the overall operation of machine is directly affected the service life of thrower head.
At present, the preparation technology of thrower head mainly has single material to cast (such as Fig. 1), bimetal inlay cast two Kind.It is widest technique in mono-material casting that potassium steel produces thrower head, but the impulsive force suffered by thrower head Smaller, it is difficult to play the characteristic of potassium steel " processing hardening ".Bimetal inlay cast is to be inlayed by hard alloy blocks It is embedded in low-alloy steel (or potassium steel), utilizes the high-wearing feature of hard alloy to improve throwing to a certain extent In the service life of stub bar, its structural representation is as in figure 2 it is shown, the application of this technique is relatively broad, but castingin work Skill interface bond strength is the highest, and therefore hard alloy blocks is unsuitable excessive, thus have impact on the life-span of thrower head.
Summary of the invention
For solve the problems referred to above, the invention provides a kind of thrower head based on biliquid metal fusion welding technology and Preparation method, solves short problem in thrower head service life, has saved cost.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of thrower head based on biliquid metal fusion welding technology, including work surface and department of assembly, described work surface Being connected by compound interface with department of assembly, the material of described work surface uses the hypereutectic high chromium cast iron Han vanadium, institute The material stating department of assembly uses low-alloy steel；
The described hypereutectic high chromium cast iron containing vanadium comprises the chemical composition of following percentage ratio: C 3.55%；Cr 25%；Mn 1.2%；Mo 1.37%；Cu 0.8%；B 0.3%；Ti 0.2%；V 0.8%；Surplus Ferrum；
Described low-alloy steel material comprises the chemical composition of following percentage ratio: C 3.3%；Cr 0-0.3%； Mn 0.7%；Mo 0.30%；Si 0.43%；Cu 0.8%；Balance iron.
Above-mentioned a kind of thrower head preparation method based on biliquid metal fusion welding technology, comprises the steps:
S1, rich chromium cast iron liquid is poured in die cavity, after rich chromium cast iron solidifies completely, pour under the condition of high temperature Low-alloy molten steel, utilize the heat of low-alloy steel by two kinds of metal fusion weldings together, form metallurgical binding Compound interface；
S2, bottom rich chromium cast iron place chill material, change grain growth direction, make carbide along cold The slowest direction growth, forms the carbide of the elongated rod shape structure vertical with Impact direction.
The method have the advantages that
The thrower head of gained is more than 5 times of potassium steel thrower head service life, with imbedding hard alloy material casting Head is suitable, but the preparation cost of the thrower head of gained is only the half of castingin thrower head, reduces energy consumption, low Carbocyclic ring is protected.Working position performance through detection gained thrower head is: HRC65-66, ak ＞ 3J/cm2；Dress Joining position performance is: HRC34-38, ak ＞ 70J/cm2。
Accompanying drawing explanation
Fig. 1 is the structural representation of the thrower head of single material casting gained in prior art.
Fig. 2 is by bimetal inlay cast, hard alloy blocks to be embedded in low-alloy steel or Gao Meng in prior art The structural representation of the thrower head of gained in steel.
Fig. 3 is a kind of thrower head preparation method gained based on biliquid metal fusion welding technology of the embodiment of the present invention The structural representation of thrower head.
Detailed description of the invention
In order to make objects and advantages of the present invention clearer, below in conjunction with embodiment, the present invention is carried out Further describe.Should be appreciated that specific embodiment described herein only in order to explain the present invention, It is not intended to limit the present invention.
Embodiments provide a kind of thrower head based on biliquid metal fusion welding technology, including work surface 1 With department of assembly 3, described work surface 1 is connected by compound interface 2 with department of assembly 3, described work surface 1 Material uses the hypereutectic high chromium cast iron Han vanadium, and the material of described department of assembly 3 uses low-alloy steel；
The described hypereutectic high chromium cast iron containing vanadium comprises the chemical composition of following percentage ratio: C 3.55%；Cr 25%；Mn 1.2%；Mo 1.37%；Cu 0.8%；B 0.3%；Ti 0.2%；V 0.8%；Surplus Ferrum；
Described low-alloy steel material comprises the chemical composition of following percentage ratio: C 3.3%；Cr 0-0.3%； Mn 0.7%；Mo 0.30%；Si 0.43%；Cu 0.8%；Balance iron.Two kinds of material chemical compositions are such as Shown in table 1.
Table 1 thrower head chemical composition and the wt% Han scale
2, a kind of thrower head preparation method based on biliquid metal fusion welding technology, It is characterized in that, comprise the steps:
S1, rich chromium cast iron liquid is poured in die cavity, after rich chromium cast iron solidifies completely, pour under the condition of high temperature Low-alloy molten steel, utilize the heat of low-alloy steel by two kinds of metal fusion weldings together, form metallurgical binding Compound interface；
S2, bottom rich chromium cast iron place chill material, change grain growth direction, make carbide along cold The slowest direction growth, forms the carbide of the elongated rod shape structure vertical with Impact direction, obtains thrower head and see Fig. 3.
Originally being embodied as based on biliquid metal fusion welding generation technique, thrower head service life of gained is potassium steel More than 5 times of thrower head, suitable with imbedding hard alloy thrower head, but the preparation cost of the thrower head of gained It is only the half of castingin thrower head, reduces energy consumption, low-carbon environment-friendly.Work through detection gained thrower head Position performance is: HRC65-66, ak ＞ 3J/cm2；Assembling position performance is: HRC34-38, ak ＞ 70J/cm2。
The above is only the preferred embodiment of the present invention, it is noted that common for the art For technical staff, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, These improvements and modifications also should be regarded as protection scope of the present invention.

Claims (2)

1. a thrower head based on biliquid metal fusion welding technology, including work surface (1) and department of assembly (3), It is characterized in that, described work surface (1) is connected by compound interface (2) with department of assembly (3), described The material of work surface (1) uses the hypereutectic high chromium cast iron Han vanadium, and the material of described department of assembly (3) uses low Steel alloy；
The described hypereutectic high chromium cast iron containing vanadium comprises the chemical composition of following percentage ratio: C 3.55%；Cr 25%；Mn 1.2%；Mo 1.37%；Cu 0.8%；B 0.3%；Ti 0.2%；V 0.8%；Surplus Ferrum；
Described low-alloy steel material comprises the chemical composition of following percentage ratio: C 3.3%；Cr 0-0.3%； Mn 0.7%；Mo 0.30%；Si 0.43%；Cu 0.8%；Balance iron.
A kind of thrower head preparation method based on biliquid metal fusion welding technology, It is characterized in that, comprise the steps:
S1, rich chromium cast iron liquid is poured in die cavity, after rich chromium cast iron solidifies completely, pour under the condition of high temperature Low-alloy molten steel, utilize the heat of low-alloy steel by two kinds of metal fusion weldings together, form metallurgical binding Compound interface；
S2, bottom rich chromium cast iron place chill material, change grain growth direction, make carbide along cold The slowest direction growth, forms the carbide of the elongated rod shape structure vertical with Impact direction.
CN201610270313.8A 2016-04-22 2016-04-22 Throwing head based on double-liquid metal fusion welding technology Expired - Fee Related CN105879971B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112676777A (en) * 2020-12-17 2021-04-20 西部钛业有限责任公司 Method for recycling titanium alloy lath excess material

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101239381A (en) * 2007-02-05 2008-08-13 荣守范 Production technique method of double-liquid bimetal composite casting hammer type hammerhead
CN102872941A (en) * 2011-11-10 2013-01-16 佳木斯大学 Hammer head for two-fluid duplex metal composite hammer crusher and manufacturing method thereof
CN103182478A (en) * 2013-03-24 2013-07-03 佳木斯大学 Bi-metal hammer head and casting process thereof
CN103357470A (en) * 2013-06-17 2013-10-23 内蒙古五二特种材料工程技术研究中心 Wear-resistant hammer head of hammer crusher and preparation method thereof
CN103801429A (en) * 2014-02-19 2014-05-21 河北科技大学 Ultra-hard wear-resistance composite hammerhead for hammer crusher and production method thereof
CN103846125A (en) * 2014-01-10 2014-06-11 洛阳力辰合金工具有限公司 Composite hard alloy material polishing head and manufacturing method thereof
CN104128231A (en) * 2014-06-30 2014-11-05 洛阳天信重工机械有限公司 Crusher impact hammer and production process
CN105195265A (en) * 2015-10-28 2015-12-30 上海大学兴化特种不锈钢研究院 Dual-compound wear-resisting hammer and manufacturing method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101239381A (en) * 2007-02-05 2008-08-13 荣守范 Production technique method of double-liquid bimetal composite casting hammer type hammerhead
CN102872941A (en) * 2011-11-10 2013-01-16 佳木斯大学 Hammer head for two-fluid duplex metal composite hammer crusher and manufacturing method thereof
CN103182478A (en) * 2013-03-24 2013-07-03 佳木斯大学 Bi-metal hammer head and casting process thereof
CN103357470A (en) * 2013-06-17 2013-10-23 内蒙古五二特种材料工程技术研究中心 Wear-resistant hammer head of hammer crusher and preparation method thereof
CN103846125A (en) * 2014-01-10 2014-06-11 洛阳力辰合金工具有限公司 Composite hard alloy material polishing head and manufacturing method thereof
CN103801429A (en) * 2014-02-19 2014-05-21 河北科技大学 Ultra-hard wear-resistance composite hammerhead for hammer crusher and production method thereof
CN104128231A (en) * 2014-06-30 2014-11-05 洛阳天信重工机械有限公司 Crusher impact hammer and production process
CN105195265A (en) * 2015-10-28 2015-12-30 上海大学兴化特种不锈钢研究院 Dual-compound wear-resisting hammer and manufacturing method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112676777A (en) * 2020-12-17 2021-04-20 西部钛业有限责任公司 Method for recycling titanium alloy lath excess material

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