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Cast steel material with added rare earth elements for automobile axle

A rare earth element and axle technology, applied in the field of casting materials, can solve the problems of difficulty in meeting the working needs of heavy-duty vehicles, easy deformation, oil leakage and cracks, etc. Effect

Inactive Publication Date: 2016-10-05
ANHUI YUEZHONG AUTO BODY EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of its own structure and welding process, the plate welded axle housing is prone to deformation, oil leakage and cracks during use, which is difficult to meet the work needs of heavy vehicles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A cast steel material added with rare earth elements for automobile axles, made of the following raw materials in parts by weight (kg): scrap steel (with iron content not less than 98%) 95, Z18 pig iron 2, crystalline silicon 0.4, carbon 0.3, scandium 0.02 , Yttrium 0.03, Manganese 1.5, Chromium 2, Antimony 0.03, Calcium Silicide 0.8, Yellow Phosphorus Slag 0.3, Nano Graphite Powder 0.6, Hot Melt Adhesive 0.43, Impurities ≤ 0.01.

[0014] The cast steel material added with rare earth elements for the automobile axle is prepared by the following specific steps:

[0015] (1) Heat all the tools and molds at 250°C and take them out for later use; break steel scrap, Z18 pig iron, carbon, and crystalline silicon into small particles, then put them into a ball mill, and put them in the state of argon gas Ball milling for 4 hours to obtain composite powder; put the composite powder into the vacuum induction furnace, heat up and heat until completely melted, then hot-roll, and m...

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PUM

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Abstract

The invention discloses a cast steel material with added rare earth elements for an automobile axle. The cast steel material is prepared from, by weight, 95-98 parts of waste steel (the content of iron is not smaller than 98%), 2-3 parts of Z18 pig iron, 0.4-0.45 part of crystalline silicon, 0.3-0.35 part of carbon, 0.02-0.024 part of scandium, 0.03-0.04 part of yttrium, 1.5-1.7 parts of manganese, 2-2.3 parts of chromium, 0.03-0.04 part of antimony, 0.8-0.86 part of calcium silicide, 0.3-0.34 part of yellow phosphorus slag, 0.6-0.7 part of nano-graphite powder, 0.43-0.48 part of a hot melt adhesive and smaller than or equal to 0.01 part of impurities. By means of the cast steel material, due to the fact that the rare earth elements such as scandium and yttrium are used, grains can be refined, the material organization can be more compact, and wear resistance of the material is improved; and due to scientific and reasonable matching design and producing and processing technologies, the prepared cast steel material has the good comprehensive performance, and the cast steel material is very suitable for producing an automobile axle part.

Description

technical field [0001] The invention relates to the technical field of casting materials, in particular to a cast steel material added with rare earth elements for automobile axles. Background technique [0002] The automobile axle is one of the key parts of the automobile. It is not only a part of the transmission system, but also an important part of the driving system. As the main part of the axle, the automobile axle housing is a key component to ensure the normal operation and service life of the automobile, so it has high requirements for its mechanical strength, stiffness and fatigue resistance. The production cost of the axle housing accounts for about 30% of the total cost of the drive axle. Especially when heavy-duty vehicles are working due to harsh roads and working conditions, the axle housing is subjected to strong impact loads, and the quality requirements for the axle housing are higher. Due to the limitations of its own structure and welding process, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04C21C7/06C21C7/064C21D6/00
CPCC21C7/06C21C7/0645C21D6/00C22C33/006C22C33/04Y02P10/20
Inventor 杨贤亮
Owner ANHUI YUEZHONG AUTO BODY EQUIP
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