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Wear resistant composite hammerhead and preparation method thereof

A composite hammer head and hammer head technology, which is applied in the direction of manufacturing tools, welding equipment, metal processing equipment, etc., can solve the problems of insignificant increase in wear resistance and complicated process, and achieve excellent wear resistance, high strength and toughness, The effect of improving the service life

Inactive Publication Date: 2014-12-17
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, using the above method to manufacture the hammer head not only has a complicated process, but also the increase in wear resistance is not obvious.

Method used

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  • Wear resistant composite hammerhead and preparation method thereof
  • Wear resistant composite hammerhead and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The wear-resistant composite hammer head is composed of a cast hammer handle and a wear-resistant surfacing alloy. The specific preparation process steps are:

[0024] ①The hammer handle 1 of the composite hammer head is first cast by casting method. The chemical composition and mass percentage of the hammer handle 1 are: 0.27C, 0.45Si, 0.63Mn, 0.09N, 1.18Cr, 0.018Al, 0.016Ca, 0.021S , 0.029P, balance Fe.

[0025] ② Hammer handle 1 is heat-treated after sand cleaning and grinding. The heat treatment process of hammer handle 1 is heating to 550°C with the furnace, keeping it warm for 6 hours, and then air-cooling to room temperature.

[0026] ③Then, the joint part of the hammer handle 1 and the hammer head 3 is sandblasted and textured, so that the surface roughness of the hammer handle 1 reaches 65-75 μm.

[0027] ④ Use the surfacing method for the hammer handle 1 after the above-mentioned texturing treatment, first surfacing the transition layer metal 2, the thickness...

Embodiment 2

[0029] The wear-resistant composite hammer head is composed of a cast hammer handle and a wear-resistant surfacing alloy. The specific preparation process steps are:

[0030] ①The hammer handle 1 of the composite hammer head is first cast by casting method. The chemical composition and mass percentage of hammer handle 1 are: 0.35C, 0.27Si, 0.75Mn, 0.14N, 1.03Cr, 0.029Al, 0.009Ca, 0.020S , 0.034P, balance Fe.

[0031] ② Hammer handle 1 is heat-treated after sand cleaning and grinding. The heat treatment process of hammer handle 1 is heating to 600°C with the furnace, keeping it warm for 4 hours, and then air-cooling to room temperature.

[0032] ③Then, the joint part of the hammer handle 1 and the hammer head 3 is sandblasted and textured, so that the surface roughness of the hammer handle 1 reaches 85-100 μm.

[0033] ④ Use the surfacing welding method for the hammer handle 1 after the above-mentioned texturing treatment, first surfacing the transition layer metal 2, the thic...

Embodiment 3

[0035] The wear-resistant composite hammer head is composed of a cast hammer handle and a wear-resistant surfacing alloy. The specific preparation process steps are:

[0036] ①The hammer handle 1 of the composite hammer head is first cast by casting method. The chemical composition and mass percentage of the hammer handle 1 are: 0.31C, 0.36Si, 0.71Mn, 0.12N, 1.08Cr, 0.023Al, 0.011Ca, 0.017S , 0.030P balance Fe.

[0037] ② Hammer handle 1 is heat-treated after sand cleaning and grinding. The heat treatment process of hammer handle 1 is heating to 580°C with the furnace, keeping it warm for 5 hours, and then air-cooling to room temperature.

[0038] ③Then, sandblasting and texturizing the joint part of the hammer handle 1 and the hammer head 3, so that the surface roughness of the hammer handle 1 reaches 75-90 μm.

[0039] ④ Use the surfacing welding method for the hammer handle 1 after the above-mentioned texturing treatment, first surfacing the transition layer metal 2, the t...

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Abstract

The invention discloses a wear resistant composite hammerhead and a preparation method thereof, and belongs to the technical field of crushing equipment. A hammer handle of the composite hammerhead is cast by adopting a casting method and comprises the following chemical components in percentage by mass: 0.26-0.35% of C, 0.25-0.45% of Si, 0.60-0.80% of Mn, 0.08-0.15% of N, 1.0-1.2% of Cr, 0.015-0.030% of Al, 0.008-0.016% of Ca, less than 0.03% of S and less than 0.04% of P, the balance being Fe. The sand blast roughening treatment is performed for a combination part of the hammer handle and a hammerhead body, so that the surface roughness of the hammer handle reaches 65-100 microns; and then, a wear resistant alloy is added, so that the composite hammerhead has high hardness and good wear resistance.

Description

technical field [0001] The invention discloses a hammer head and a preparation method thereof, in particular to a wear-resistant composite hammer head and a preparation method thereof, belonging to the technical field of crushing equipment. Background technique [0002] Hammer crusher has simple structure, large crushing ratio, low energy consumption, and even material discharge. It is suitable for crushing various materials. It has been widely used in metallurgy, mining, building materials, electric power and chemical industries. damaged parts. Because the hammer head has high speed, high impact force, serious wear and harsh working conditions, the hammer head is required to have a certain strength and impact and wear resistance. High manganese steel is the traditional material of the hammer head. Due to the insufficient work hardening of high manganese steel in the process of material crushing, the hardness has not been fully improved, and the service life is short. Usin...

Claims

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Application Information

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IPC IPC(8): B02C13/28C22C38/12C22C38/18C22C37/10B23K5/18
Inventor 王开明符寒光蒋志强雷永平刘建伟魏永强冯宪章冯锡兰刘元朋文振华王振
Owner BEIJING UNIV OF TECH
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