Preparing method for abrasion-resisting steel with oriented growth carbide

A technology of directional growth and carbide, which is applied in the field of preparation of wear-resistant steel, can solve the problems of the influence of alloy materials and the inapplicability of preparation of wear-resistant steel materials, etc., and achieve the effect of strong hardness, high strength and accurate element content

Active Publication Date: 2016-11-09
陕西华领新材料科技股份有限公司
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Problems solved by technology

[0005] However, for the treatment of alloy materials, different temperatures, pressures and components will have a great impact on the obtained alloy materials
Although the above scheme adopts directional solidification technology, it is not suitable for the preparation of wear-resistant steel materials with directional growth of carbides

Method used

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  • Preparing method for abrasion-resisting steel with oriented growth carbide
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  • Preparing method for abrasion-resisting steel with oriented growth carbide

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Embodiment Construction

[0035] The present invention will be described in further detail below by means of specific embodiments:

[0036] The reference signs in the drawings of the description include: sample rod 1 , quartz tube 2 , coil 3 , unmelted zone 4 , melting zone 5 , and resolidified zone 6 .

[0037] Among them, graphite powder, high-purity iron powder, tungsten, molybdenum, chromium, and vanadium are represented by their chemical symbols, namely: C, Fe, W, Mo, Cr, V. According to graphite powder, high-purity iron powder, the different contents of alloy powder (see Table 1) and make embodiment 1-7 seven groups of different wear-resistant steels. like figure 1 As shown, the specific process is as follows:

[0038] Step 1: First, weigh graphite powder, high-purity iron powder, and alloy powder according to the mass percentages in Table 1, and then put the prepared materials into a ball mill tank for ball milling, wherein the ratio of balls to materials is 10:1;

[0039] Step 2: Take out t...

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Abstract

The invention belongs to the technical field of metal material preparing and machining, and discloses a preparing method for abrasion-resisting steel with oriented growth carbide. The method comprises the following steps that firstly, graphite powder, high-purity iron powder and alloy powder are weighed and matched; secondly, the mixed powder is taken out and pressed into cylindrical samples through a tablet press, and the cylindrical samples are stacked in a quartz tube; thirdly, the quartz tube is placed in a regional smelting furnace, and the quartz tube is heated in the vacuum state; and fourthly, the solidified and cooled samples are taken out, the quartz tube is broken, and the prepared abrasion-resisting steel material is obtained. The oriented solidification technology is adopted for preparing the abrasion-resisting steel with the oriented growth carbide, and the abrasion-resisting steel has high strength, tensile strength and hardness and high orientation performance. Meanwhile, the resolidification rate and the length of a melting region can be controlled by controlling the downward pulling speed and power of a heating coil, and abrasion-resisting steel materials different in carbide orientation degree and manner are prepared.

Description

technical field [0001] The invention belongs to the technical field of metal material preparation and processing, and in particular relates to a preparation method of wear-resistant steel with directional growth of carbides. Background technique [0002] High-efficiency wear-resistant materials are used in metallurgy, mining, cement, electric power, machinery, coal and other industrial fields, and the consumption is huge. Wear-resistant steel materials are currently a widely used material in wear-resistant materials. Carbide in wear-resistant steel materials has a significant impact on its wear resistance. It is required that carbides not only have high hardness and appropriate toughness, but also factors such as their size, shape and distribution are also very important. The hardness and fracture toughness of carbides are affected by the content of different alloying elements and also by the relationship of crystallographic orientation. The wear resistance of different cr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04B22D27/04C22C38/12C22C38/22C22C38/24C22C38/36
CPCB22D27/045C22C33/006C22C33/04C22C38/12C22C38/22C22C38/24C22C38/36
Inventor 冯晶种晓宇蒋业华周荣
Owner 陕西华领新材料科技股份有限公司
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