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Wear-resisting alloy hammer head and preparation method thereof

A wear-resistant alloy and hammer technology, which is applied in the field of metal wear-resistant materials and crushing machinery, can solve the problems of limited production conditions, difficult on-site operation, and complicated processes, so as to improve the internal quality, reduce the weight of the hammer, and save metal. effect of material

Inactive Publication Date: 2017-04-26
YINGKOU LONGCHEN MINE VEHICLE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also some problems and deficiencies: mainly when the gating system design is unreasonable or the pouring temperature and pouring speed are not well controlled, it is easy to form carbon defects (carburization, slag inclusions, pores, wrinkled skin, carbon black, improper composition) equal) and partial tissue loosening defects
However, the processes of "burning first and then pouring" and "vibration pouring" are complicated, the on-site operation is difficult, and they are also limited by certain production conditions

Method used

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  • Wear-resisting alloy hammer head and preparation method thereof
  • Wear-resisting alloy hammer head and preparation method thereof
  • Wear-resisting alloy hammer head and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Using high manganese steel as the main material to prepare a wear-resistant alloy hammer, the weight percentages of the ingredients are as follows: C: 1.05-1.35%, Si: 0.3-0.8%, Mn: 11.0-19.0%, Cr: 1.5-2.5 %, Mo: 0.3-0.5%, V, Ti, W micro, S: ≤0.04%, P: ≤0.06%, the balance is Fe.

[0036] The preparation method is 1. Use resistance wire to cut polystyrene (commonly known as EPS white mold, foam density 0.016g / cm3~0.02g / cm3) foam, and make a hammer model according to the requirements of the drawing, where the end of the hammer is in the middle position The length is equal to the hammer end, the width is 12-20mm, and the depth is 25-30mm from the bottom of the hammer end. That is, a lost foam wear-resistant hammer model of the present invention is prepared.

[0037] 2. Apply the paint (conventional paint for lost foam) and bake the lost foam wear-resistant hammerhead model prepared as above. The brushing and baking methods are in accordance with the lost foam process...

Embodiment 2

[0045] Example 2: The wear-resistant alloy hammer head is prepared with medium and low alloy wear-resistant steel as the main material, and the weight percentage of the ingredients is as follows: C: 0.25-1.2%, Si: 0.5-1.0%, Mn: 0.6-1.4%, Cr: 1.0-6.5%, Mo: 0.3-0.8%, Ni: 0.2-0.8%, Cu: 0.3-0.5%, V, Ti, W micro, S: ≤0.04%, P: ≤0.04%, the balance is Fe.

[0046] The preparation method is: 1. Use resistance wire to cut polystyrene (commonly known as EPS white mold, foam density 0.016g / cm3 ~ 0.02g / cm3) foam, and make a hammer model (sample) according to the requirements of the drawing, where the end of the hammer The middle position of the part is made with a length equal to the length of the hammer end, with a width of 12-20mm, and a long strip-shaped gap with a depth of 25-30mm from the bottom of the hammer end. That is, a lost foam wear-resistant hammerhead model of the present invention is produced ( kind).

[0047] 2. The evaporative foam wear-resistant hammer model (sample) prepare...

Embodiment 3

[0055] Example 3: The wear-resistant alloy hammer head is prepared using high-chromium alloy wear-resistant steel as the main material, and the weight percentage of the ingredients is as follows: C: 0.9-1.8%, Si: 0.5-1.0%, Mn: 0.6-1.4%, Cr: 12.0-19.0%, Mo: 0.5-0.8%, Ni: 0.2-0.8%, Cu: 0.3-0.5%, V, Ti, W micro, S≤0.04%, P≤0.04%, the balance is Fe.

[0056] The preparation method is: 1. Use resistance wire to cut polystyrene (commonly known as EPS white mold, foam density 0.016g / cm3 ~ 0.02g / cm3) foam, and make a hammer model according to the requirements of the drawing, where the end of the hammer is in the middle The position is made with a length of the same length as the hammer end, the width is 12-20mm, and the depth is 25-30mm from the bottom of the hammer end. This is a kind of lost foam wear-resistant hammerhead model of the present invention.

[0057] 2. Apply the paint (conventional paint for lost foam) and bake the lost foam wear-resistant hammerhead model prepared as above....

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Abstract

The invention relates to a wear-resisting alloy hammer head and a preparation method thereof. The hammer head is characterized in that a strip-shaped gap is formed in the middle of an end part of the hammer head; the strip-shaped gap is as long as a hammer end and is 12-20 mm wide; and the depth of the strip-shaped gap is equal to the distance from the top of the hammer end to the bottom of the hammer end and is 25-30 mm. Since the end part of the hammer head is hollowed out in a thickness direction to form a 12-20 mm space, when the hammer head crushes materials, fine materials can easily pass through the space; and if large materials are embedded in the space, the effect that materials strike materials can be realized, and accordingly the crushing efficiency is improved. A wear-resisting high-Cr white cast iron piece can be embedded in the 12-20 mm space to form a composite hammer head, so that the service life of the wear-resisting alloy hammer head can be further prolonged.

Description

Technical field [0001] The invention relates to a wear-resistant alloy hammer head and a preparation method thereof, belonging to the technical field of crushing machinery, in particular to the technical field of metal wear-resistant materials. [0002] technical background [0003] In order to improve the grinding efficiency of the crusher and reduce the energy consumption, various types of crushers have been developed at home and abroad in recent years. Such as hammer type, counterattack type, vertical shaft type, impact type, etc. The hammer head is the main wear part of the crusher. It is widely used in the fine crushing of granite, basalt, limestone, river pebble, cement clinker, quartz stone, iron ore, bauxite and other minerals. It is also suitable for mechanical artificial High-quality stone materials are produced in industries such as sand making, high-grade highways, railways, water conservancy, airports, construction, cement, refractory materials, and metallurgy. Accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C38/02C22C38/18C22C38/12C22C38/08C22C38/16B22C9/04C21D9/00B02C13/28
CPCB02C13/28B22C9/04C21D9/0068C22C38/02C22C38/04C22C38/08C22C38/12C22C38/16C22C38/18
Inventor 张国民陈熙
Owner YINGKOU LONGCHEN MINE VEHICLE MFG CO LTD
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