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A kind of preparation method of 1200mpa level heat treatment wheel

A wheel and grade technology, which is applied in the field of preparation of 1200MPa heat-treated wheels, can solve problems such as weak resistance to deformation, achieve the effects of reducing the weight of a single wheel, solving local poor performance, and improving stability

Active Publication Date: 2022-01-28
LIAONING HENGYE HI TECH NEW MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with ordinary wheels, lightweight wheels have thinner walls and relatively weaker deformation resistance

Method used

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  • A kind of preparation method of 1200mpa level heat treatment wheel
  • A kind of preparation method of 1200mpa level heat treatment wheel
  • A kind of preparation method of 1200mpa level heat treatment wheel

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Embodiment Construction

[0035] A preparation method for a 1200MPa grade heat-treated wheel, comprising the following steps:

[0036] Step 1) select steel, the chemical composition mass percentage of steel is: C 0.19, Si 1.13, Mn1.76, Al0.04, P 0.018, and the balance is Fe and unavoidable impurities; the tensile strength of the steel is 670MPa, yield strength is 450MPa;

[0037] Step 2) as in Figure 1-4 As shown, the wheel spoke 3 with a qualified size is manufactured by using a conventional production process with steel, the thickness of the spoke sheet is 9 mm, and the thickness of the four air holes after processing is 5.5 mm, and the wheel rim 1 with a qualified size is manufactured with a conventional production process with steel. After the flash butt welding process, the weld seam is annealed, and the expansion amount of the expansion process is 25mm; the wheel spoke 3 and the wheel rim 1 are made of a qualified wheel by synthetic welding process, and the welding wire composition is: C 0.18, ...

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Abstract

The invention belongs to the field of mechanical manufacturing, and in particular relates to a method for preparing a 1200MPa heat-treated wheel. The technical scheme is as follows: step 1) select steel, the chemical composition mass percentage of steel is: C 0.15~0.20, Si 0.7~1.17, Mn 1.2~2.2, Al 0.02~0.06, P 0.015~0.02, the balance is Fe and unavoidable Impurities; Step 2) Utilize the selected steel to produce qualified wheel spokes and wheel rims using conventional production processes; adopt conventional production processes to synthesize the wheel spokes and wheel rims into qualified wheels; Step 3) to the described Carry out heat treatment on the wheels. The heat treatment process is as follows: firstly, heat the wheels to 890-910°C, take them out of the furnace, cool them in air to 780-786°C, put them in a salt bath to cool and quench them to 215-225°C, and then heat them to 320-340°C. ℃, air cooling to below 100 ℃ and hot water washing. The external dimensions of the wheel prepared by the invention meet the standard requirements, and the overall physical properties are optimized.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and in particular relates to a method for preparing a 1200MPa heat-treated wheel. Background technique [0002] When making steel wheels, the conventional production process of wheel spokes includes: blanking, punching center holes and bolt holes, spinning, blowing holes, expanding bolt holes, and turning; the conventional production processes of wheel rims include: rolling, flashing Welding, rolling, end cutting, compound rounding, flaring, rolling, expanding and shaping, punching valve holes; wheel spokes and wheel rims are made into wheels through synthetic welding processes. [0003] At present, the high-strength materials used in the traditional manufacturing process of steel wheels generally use materials with a tensile strength of about 400 MPa, and the highest individual ones are only about 700 MPa. The main reasons are: first, the processing capacity of the equipment is insuffici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C21D9/34C21D1/607C21D1/18C21D9/50C21D1/26B23P15/00
CPCC21D1/18C21D1/26C21D1/607C21D9/34C21D9/50C22C38/002C22C38/02C22C38/04C22C38/06B23P15/00C21D2211/001C21D2211/008
Inventor 衣江华孙琪郭吉喆
Owner LIAONING HENGYE HI TECH NEW MATERIAL
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