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Automobile hydraulic bracket and production method thereof

A technology of hydraulic support and production method, which is applied in the field of auto parts, can solve the problems of increasing the cleaning difficulty of hydraulic support, high frequency of use, deformation of support, etc., and achieve the effects of accelerating heat conduction speed, prolonging service life and improving strength

Inactive Publication Date: 2018-01-12
ANHUI TIANYU AUTO PARTS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after a period of use of traditional automotive hydraulic supports, the frictional resistance between them becomes larger. It is often necessary to add lubricants to reduce the generation of frictional resistance, and the addition of lubricants will cause more stains to accumulate on the surface of the hydraulic supports. This further increases the difficulty of cleaning the hydraulic support; and because the hydraulic support is usually subjected to high pressure and high frequency of use, it is prone to deformation, serious wear and corrosion of the support

Method used

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  • Automobile hydraulic bracket and production method thereof

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Effect test

Embodiment 1

[0019] A kind of automobile hydraulic support proposed by the present invention comprises a hydraulic support tube and a hydraulic support seat, and the steel used for the hydraulic support tube and the hydraulic support seat includes raw materials in the following weight percentages: C 0.40%, Si 1.55%, Mn 0.55%, Cr0.65%, Mo 0.30%, V 0.45%, W 0.10%, Ni 1.40%, B 0.04%, S ≤ 0.03%, P ≤ 0.03%, the balance is Fe and unavoidable impurities.

[0020] Its production method comprises the following steps:

[0021] S1. Preparation of molten steel: Add low-carbon ferrochromium of corresponding quality into the smelting furnace, test it after it is completely melted, and adjust the composition content, and then add inert gas into the smelting furnace for 30 minutes before adding the refining agent. Refining for 15 minutes to obtain molten steel;

[0022] S2. Casting and post-treatment of molten steel: The molten steel prepared in step S1 is cast, cleaned, cold-rolled and carburized, quenc...

Embodiment 2

[0026] A kind of automobile hydraulic support proposed by the present invention comprises a hydraulic support pipe and a hydraulic support seat, and the steel used for the hydraulic support pipe and the hydraulic support seat includes raw materials in the following weight percentages: C 0.45%, Si 1.55%, Mn 0.50%, Cr 0.60%, Mo 0.25%, V 0.35%, W 0.05%, Ni 1.45%, B 0.05%, S ≤ 0.03%, P ≤ 0.03%, the balance is Fe and unavoidable impurities.

[0027] Its production method comprises the following steps:

[0028] S1. Preparation of molten steel: Add low-carbon ferrochromium of corresponding quality into the smelting furnace, test it after it is completely melted, and adjust the composition content, and then add inert gas into the smelting furnace for 30 minutes before adding the refining agent. Refining for 10 minutes, the steel liquid is obtained;

[0029] S2. Casting and post-treatment of molten steel: The molten steel prepared in step S1 is cast, cleaned, cold-rolled and carburize...

Embodiment 3

[0033] A kind of automobile hydraulic support proposed by the present invention comprises a hydraulic support pipe and a hydraulic support seat, and the steel used for the hydraulic support pipe and the hydraulic support seat includes raw materials in the following percentages by weight: C 0.30%, Si 1.45%, Mn 0.60%, Cr 0.65%, Mo 0.35%, V 0.35%, W 0.10%, Ni 1.55%, B 0.03%, S ≤ 0.03%, P ≤ 0.03%, the balance is Fe and unavoidable impurities.

[0034] Its production method comprises the following steps:

[0035] S1. Preparation of molten steel: Add low-carbon ferrochromium of corresponding quality into the smelting furnace, test it after it is completely melted, and adjust the composition content, and then add inert gas into the smelting furnace for 30 minutes before adding the refining agent. Refining for 15 minutes to obtain molten steel;

[0036] S2. Casting and post-treatment of molten steel: The molten steel prepared in step S1 is cast, cleaned, cold-rolled and carburized, q...

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Abstract

The invention discloses an automobile hydraulic bracket which comprises hydraulic bracket pipes and a hydraulic bracket base. A steel material adopted by the hydraulic bracket pipes and the hydraulicbracket base comprises the following raw materials of C, Si, Mn, Cr, Mo, V, W, Ni, B, S, P, Fe and inevitable impurities. A production method of the automobile hydraulic bracket comprises the following steps of preparation of the molten steel material, casting and post-treatment of the molten steel material, oiling for the surfaces of the hydraulic bracket pipe workpieces, spraying of a wear-resistant coating to the surface of the hydraulic bracket base workpiece, and welding and assembling of the hydraulic bracket pipes and the hydraulic bracket base. The automobile hydraulic bracket providedby the invention has high pressure resistance and good wear resistance and corrosion resistance, the friction coefficient between the hydraulic bracket pipes is low, the production method is reasonable in step, the production process is smooth, and the automobile hydraulic bracket and the production method thereof are suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of automobile parts, in particular to an automobile hydraulic support and a production method thereof. Background technique [0002] Hydraulic support is a kind of hydraulic power device that uses liquid pressure to generate support force and realize automatic transfer for roof support and management. It is used frequently in the process of car use and car maintenance. Under normal circumstances, the hydraulic support of the car bears a large weight and requires a high load-bearing capacity of the hydraulic support. In order to meet the requirements of the bearing capacity, the hydraulic support is usually prepared with steel, and the most commonly used steel is 27SiMn steel. 27SiMn steel is mainly The chemical composition is C 0.24%~0.32%, Mn 1.10%~1.40% and Si 1.10%~1.40%. It has good comprehensive mechanical properties and is usually rolled into round, square and flat shapes. However, after a period of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/44C22C38/46C22C38/54C09D163/00C09D127/18C09D7/61
Inventor 李珍芳李支峰
Owner ANHUI TIANYU AUTO PARTS MFG
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