Duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and preparation method thereof

A high-toughness, bimetallic technology, applied in the field of wear-resistant metal materials, can solve the problems of frequent replacement of hammer heads, undurable life of hammer heads, high production costs, etc., and achieve the advantages of metallurgical bonding, increased flushing time, and convenient heating Effect

Inactive Publication Date: 2016-03-23
DANYANG JIAWEI WEAR RESISTANT MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] The purpose of the present invention is to solve the deficiencies in the prior art, and proposes an inlay casting process of a composite hammer head, which solves the disadvantages and sh...

Method used

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  • Duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and preparation method thereof
  • Duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and preparation method thereof
  • Duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] (1) Material composition design of hammer head and hammer handle:

[0067] ①The chemical composition and mass percentage of the hammer head material are: 0.7%C, 1.2%B, 6.5%Cr, 0.5%Si, 4.0%Mn, 0.6%Al, 0.50%Ti, 0.25%V, 0.30%Cu, 0.10% Ca, 0.10%Ce, 0.08%Y, 0.07%N, 0.07Ba, 0.06%K, S<0.03%, P<0.04%, the balance is Fe and unavoidable impurity elements.

[0068] ② The chemical composition and mass percentage of the hammer handle material are; the chemical composition and mass fraction of low-carbon bainite steel are: 0.20% C, 2.50% Mn, 1.00% Si, 0.02N, 0.005% B, 0.03% Nb, 0.010% Ba, 0.05% ReSiMg, <0.03% S, <0.04% P, the balance is Fe and unavoidable impurity elements.

[0069] The manufacturing process steps are:

[0070] (1) Manufacture of boron agent and metamorphic inoculant:

[0071] Crush ferrovanadium, ferrotitanium, potassium oxide, silicon-calcium-barium alloy, and nitrogen-containing ferrochrome into 60-100 mesh powders, and crush 60-100 mesh BC, BN, B 2 o 3 、Si ...

Embodiment 2

[0092] The present invention can be realized through the design and technical scheme of following basic chemical composition, comprises the following steps:

[0093] (1) Material composition design of hammer head and hammer handle:

[0094] ①The chemical composition and mass percentage of the hammerhead material are: 0.90%C, 1.50%B, 8.0%Cr, 0.5%Si, 4.5%Mn, 0.85%Al, 0.70%Ti, 0.30%V, 0.8%Cu, 0.20% Ca, 0.20%Ce, 0.15%Y, 0.10%N, 0.08Ba, 0.10%K, S<0.03%, P<0.04%, the balance is Fe and unavoidable impurity elements.

[0095] ② The material of the hammer handle is directly made of low alloy steel.

[0096] The manufacturing process steps are:

[0097] (1) Manufacture of boron agent and metamorphic inoculant:

[0098] Crush ferrovanadium, ferrotitanium, potassium oxide, silicon-calcium-barium alloy, and nitrogen-containing ferrochrome into 60-100 mesh powders, and crush 60-100 mesh BC, BN, B 2 o 3 、Si 3 N 4 Together with the modified elements rare earth Ce and Y, it is formulate...

Embodiment 3

[0116] The present invention can be realized through the design and technical scheme of following basic chemical composition, comprises the following steps:

[0117] (1) Material composition design of hammer head and hammer handle:

[0118] ①The chemical composition and mass percentage of the hammer head material are: 1.1%C, 1.8%B, 10.0%Cr, 0.7%Si, 5.2%Mn, 1.0%Al, 0.80%Ti, 0.3%V, 1.0%Cu, 0.25% Ca, 0.3%Ce, 0.2%Y, 0.18%N, 0.10Ba, 0.13%K, S<0.03%, P<0.04%, the balance is Fe and unavoidable impurity elements.

[0119] ② The chemical composition and mass percentage of the hammer handle material are; the chemical composition and mass fraction of low-carbon bainite steel are: 0.35% C, 3.00% Mn, 1.70% Si, 0.08N, 0.010% B, 0.07% Nb, 0.020% Ba, 0.25% ReSiMg, <0.03% S, <0.04% P, the balance is Fe and unavoidable impurity elements.

[0120] The double-metal composite high-toughness high-boron wear-resistant hammer provided by the present invention and its preparation method, its manufac...

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Abstract

The invention discloses a duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and a preparation method thereof. A hammer handle is made of low-carbon bainite steel. The hammerhead is made of high-toughness high-boron abrasion-resistant steel. A medium-frequency inducing heater is installed outside a sandbox. During molding, the hammer handle is coated with an antioxidant after impurities on the surface of the composite part of the hammer handle are cleaned, sleeved with a hammerhead evanescent mold and placed into a sand mold for molding. A straight pouring channel and an inner pouring channel are molded through evaporative patterns. Mold inside preheating of the hammer handle is conducted through the medium-frequency inducing heater to reach a preset temperature, smelted hammerhead molten steel is poured at the 1560-1620 DEG C, heat is preserved for a certain time after pouring is completed, the box is opened and cleaned, and heat treatment is conducted. The duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and the preparation method thereof are simple in technique; the metallurgical bonding of manufactured duplex-metal composite hammerhead interfaces is achieved; the product quality is good, and the safety is high. The defects that hammerheads produced through the prior art are short in service and high in production cost are overcome, and the service life of the duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead is more than three times longer than that of high-manganese steel hammerheads.

Description

technical field [0001] The invention relates to the field of wear-resistant metal materials, in particular to a double-metal composite high-toughness high-boron wear-resistant steel hammer head and a preparation method thereof. Background technique [0002] Hammer crusher is a crushing machinery widely used in industries such as building materials, cement, ceramics, metallurgy, mining, electric power, refractory materials and chemical fertilizers, and the hammer head is the main component and a large amount of easy-wearing parts for crushing materials. very big. The working surface of the hammer head is in contact with the material, resulting in high stress wear. Since the crushed materials are generally hard objects such as rocks and metal ores, the wear of the parts is relatively serious. Through the analysis of the microscopic morphology of the hammer head surface, the wear process of the hammer head is the result of the combined action of deformation and erosion wear. ...

Claims

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Application Information

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IPC IPC(8): C22C38/38C22C38/36C22C38/32C22C38/28C22C38/24C22C38/20C22C38/02C22C38/04C22C38/06C22C33/04B22D19/16C22C38/12
CPCC22C38/38B22D19/16C22C33/04C22C38/001C22C38/005C22C38/02C22C38/04C22C38/06C22C38/12C22C38/20C22C38/24C22C38/28C22C38/32C22C38/36
Inventor 丁家伟皇志富丁刚耿德英鹿微微鹿策施孟达
Owner DANYANG JIAWEI WEAR RESISTANT MATERIAL TECH CO LTD
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