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Double-liquid double-metal oil quenching hammer and machining method thereof

A dual-liquid bimetallic and oil quenching technology, applied in the direction of manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of high cost, high manufacturing difficulty, inability to meet performance requirements, etc., achieve reasonable ingredients, reduce production costs, and simple process Effect

Active Publication Date: 2014-03-26
BEIPIAO JINSHIDA MACHINERY MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two types of bi-liquid bimetallic hammer hammers have the same heat treatment process in the casting process, which cannot meet the corresponding performance requirements of the two material bimetallic hammer heads.
However, if two kinds of heat treatment processes are used in the production of these two kinds of bimetallic hammer heads with different materials, the production will be very difficult and the cost will be particularly high.

Method used

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  • Double-liquid double-metal oil quenching hammer and machining method thereof
  • Double-liquid double-metal oil quenching hammer and machining method thereof
  • Double-liquid double-metal oil quenching hammer and machining method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The hammer head part is made of high chromium cast iron and added with modifier. The chemical composition of high chromium cast iron is shown in Table 1 in terms of weight percentage:

[0050] Table 1

[0051]

[0052] Modifiers are 0.8 wt% ferroboron, 1.0 wt% ferrotitanium, 0.8 wt% ferrovanadium, 1.0 wt% rare earth silicon, and the balance is iron.

[0053] The hammer handle part is made of low-carbon alloy steel and added with modifier. The chemical composition of low-carbon alloy steel is shown in Table 2 in terms of weight percentage:

[0054] Table 2

[0055]

[0056] The modificator is 3.0 wt% lanthanum cerium rare earth, 1.5 wt% ferrosilicon particles, 2.0 wt% rare earth magnesium, 0.3 wt% ferroboron, and the balance is iron.

[0057] 1. Melting of some materials of the hammer head

[0058] 1.1. In terms of weight percentage, scrap steel, pig iron, ferrochrome, ferromanganese and ferrosilicon are used as furnace materials according to the carbon content...

Embodiment 2

[0070] The hammer head part is made of high chromium cast iron and added with modifier. The chemical composition of high chromium cast iron is shown in Table 3 in terms of weight percentage:

[0071] table 3

[0072]

[0073] Modifiers are 0.5 wt% ferroboron, 1.5 wt% ferrotitanium, 0.5 wt% ferrovanadium, 1.5 wt% rare earth silicon, and the balance is iron.

[0074] The hammer handle part is made of low-carbon alloy steel with modifier added, and the chemical composition of the low-carbon alloy steel is shown in Table 4 in terms of weight percentage:

[0075] Table 4

[0076]

[0077] The modificator is 2.0 wt% lanthanum cerium rare earth, 2.0 wt% ferrosilicon particles, 1.5 wt% rare earth magnesium, 0.5 wt% ferroboron, and the balance is iron.

[0078] 1. Melting of some materials of the hammer head

[0079] 1.1. In terms of weight percentage, scrap steel, pig iron, ferrochrome, ferromanganese and ferrosilicon are used as furnace materials according to the carbon cont...

Embodiment 3

[0091] The hammer head part is made of high chromium cast iron and added with modifier. The chemical composition of high chromium cast iron is shown in Table 5 in terms of weight percentage:

[0092] table 5

[0093] element C Si mn Cr Mo P S wt% 3.1 0.6 0.9 22 0.4 ≤0.035 ≤0.035

[0094] The modificator is 0.6wt% ferroboron, 1.2wt% ferrotitanium, 0.6wt% ferrovanadium, 1.2wt% rare earth silicon, and the balance is iron.

[0095] The hammer handle part is made of low-carbon alloy steel and added with modifier. The chemical composition of low-carbon alloy steel is shown in Table 6 in terms of weight percentage:

[0096] Table 6

[0097] element C Cr mn Si Ce P S wt% 0.4 1.8 0.9 1.6 0.06 ≤0.035 ≤0.035

[0098] The modificator is 2.5 wt% lanthanum cerium rare earth, 1.8 wt% ferrosilicon particles, 1.8 wt% rare earth magnesium, 0.4 wt% ferroboron, and the balance is iron.

[0099] 1. Melting of some materials ...

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Abstract

The invention discloses a double-liquid double-metal oil quenching hammer and a machining method thereof. The machining method comprises the following steps: matching waste steel, pig iron, ferrochromium, ferromanganese and ferrosilicon as furnace materials according to chemical component content of a hammer head part and a hammer handle part of a product, respectively putting the materials into a sensing furnace to be smelted, casting and shaping, performing thermal treatment so as to obtain the double-liquid double-metal oil quenching hammer. The double-liquid double-metal oil quenching hammer has the advantages of simple process, reasonable material matching and low production cost; as a high-chromium iron material is added into an alterant with ferroboron, ferrotitanium, ferrovanadium and rare earth silicon to cast the hammer head part, a low-carbon alloy steel material is added into an alterant with rare earth lanthanum and cerium, ferrosilicon particles, rare earth magnesium and ferroboron to cast the hammer handle part, and the requirements on hardness and wear-resistance of the hammer part and on hardness, toughness and wear-resistance of the hammer handle part can be met through thermal treatment at one step.

Description

technical field [0001] The invention relates to a double-liquid bimetallic oil quenching hammer and a processing method thereof. Background technique [0002] The double-fluid bimetallic hammer head is widely used in hammer crushers due to its excellent performance. It can satisfy the requirement that the handle part of the hammer is constantly subjected to alternating bending stress and impact force during use, and has sufficient strength and toughness. The hammer head part is in direct contact with the crushed material, and has high hardness and wear resistance. [0003] At present, there are mainly two types of double-liquid bimetallic hammer hammers. One is that the material of the hammer head is high-chromium cast iron, and the material of the hammer handle is carbon steel; the other is that the material of the hammer head is high-chromium cast iron. The handle part is made of high manganese steel. These two types of bi-liquid bimetallic hammer hammers all use the sam...

Claims

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Application Information

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IPC IPC(8): C22C37/10C22C38/18B22D19/16C21D9/00
Inventor 金玉伟
Owner BEIPIAO JINSHIDA MACHINERY MFR
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