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Automobile steering-gear cylinder barrel

A machine cylinder and automobile technology, which is applied in the field of automobile steering machines, can solve the problems of complex processing of steering machine cylinders, insufficient strength and service life, etc., and achieve simple manufacturing processes and improved strength of steel-bonded hard alloys , cost reduction effect

Inactive Publication Date: 2016-06-22
郭金艳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Although the electric steering gear is the development trend of the current automobile steering device, the hydraulic steering gear still has its irreplaceable space. In some areas where the environment is relatively complicated and the road conditions are relatively poor, the processing technology for processing the steering gear cylinder is relatively complicated. , and its strength and service life cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A cylinder tube for an automobile steering gear, which is prepared by mixing steel-bonded cemented carbide raw material powder, pressing and sintering, heating forging, annealing, machining, quenching, tempering, and nitriding:

[0025] The steel-bonded cemented carbide raw material powder includes a hard phase and a steel-based binder, and is characterized in that its composition is: the hard phase (weight) consists of 10 parts of alumina, 5 parts of molybdenum carbide, 2 parts of aluminum nitride, and hexaboron. 2 parts of calcium and 8 parts of Co; steel-based binder (weight) consists of C0.1%, Co4%, Ni1%, Ga0.8%, Ce0.5%, Zn0.1%, Si0.07%, La0 .04%, Cd0.02%, the balance is Fe composition; the weight ratio of hard phase and steel-based binder is 1.7,

[0026] In the powder mixing process: weigh alumina, molybdenum carbide, aluminum nitride, calcium hexaboride, and Co powder according to the above ratio, and perform ball milling and alloying according to the ball-to-battery ...

Embodiment 2

[0034] A cylinder tube for an automobile steering gear, which is prepared by mixing steel-bonded cemented carbide raw material powder, pressing and sintering, heating forging, annealing, machining, quenching, tempering, and nitriding:

[0035] The steel-bonded cemented carbide raw material powder includes a hard phase and a steel-based binder, and is characterized in that its composition is as follows: the hard phase (weight) consists of 15 parts of alumina, 10 parts of molybdenum carbide, 2 parts of aluminum nitride, and hexaboron 2 parts of calcium, 8 parts of Co; steel-based binder (weight) consists of C0.2%, Co5%, Ni2%, Ga0.9%, Ce0.6%, Zn0.2%, Si0.08%, La0 .05%, Cd0.03%, the balance is Fe composition; the weight ratio of hard phase and steel-based binder is 1.7,

[0036] In the powder mixing process: weigh alumina, molybdenum carbide, aluminum nitride, calcium hexaboride, and Co powder according to the above ratio, and perform ball milling and alloying according to the ball-to-...

Embodiment 3

[0044] A cylinder tube for an automobile steering gear, which is prepared by mixing steel-bonded cemented carbide raw material powder, pressing and sintering, heating forging, annealing, machining, quenching, tempering, and nitriding:

[0045] The steel-bonded cemented carbide raw material powder includes a hard phase and a steel-based binder, and is characterized in that its composition is: the hard phase (weight) consists of 13 parts of alumina, 7 parts of molybdenum carbide, 2 parts of aluminum nitride, and hexaboron 2 parts of calcium and 8 parts of Co; steel base binder (weight) consists of C0.15%, Co4.5%, Ni1.5%, Ga0.85%, Ce0.55%, Zn0.15%, Si0. 075%, La0.045%, Cd0.025%, the balance is composed of Fe; the weight ratio of hard phase and steel-based binder is 1.7,

[0046] In the powder mixing process: weigh alumina, molybdenum carbide, aluminum nitride, calcium hexaboride, and Co powder according to the above ratio, and perform ball milling and alloying according to the ball-to...

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PUM

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Abstract

Provided is an automobile steering-gear cylinder barrel. The automobile steering-gear cylinder barrel is prepared from steel bond hard alloy raw material powder through the procedures of mixing, pressing and sintering, heating and forging, annealing, machining, quenching, tempering and nitriding. The hard phase of the automobile steering-gear cylinder barrel involves aluminium oxide, molybdenum carbide, aluminium nitride, calcium hexaboride and Co and improves the mechanical property of the material. The components of a steel base binder have high strength, and the strength of steel bond hard alloy is further improved under the action of the hard phase.

Description

Technical field [0001] The invention relates to a cylinder barrel of an automobile steering gear, which belongs to the technical field of automobile steering gears. Background technique [0002] Although electric steering gear is the current development trend of automobile steering devices, hydraulic steering gear still has its irreplaceable space. In some areas with complex environments and poor road conditions, the current processing technology for processing steering gear cylinders is more complicated , And its strength and service life cannot meet the requirements. Summary of the invention [0003] A cylinder tube for an automobile steering gear, which is prepared by mixing steel-bonded cemented carbide raw material powder, pressing and sintering, heating forging, annealing, machining, quenching, tempering, and nitriding: [0004] The steel-bonded cemented carbide raw material powder includes a hard phase and a steel-based binder, and is characterized in that its composition is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/10B22F1/00B22F3/16B22F3/17B22F3/24
CPCB22F5/10B22F1/0003B22F3/16B22F3/17B22F3/24B22F2003/175B22F2003/242B22F2003/247B22F2003/248B22F2998/10B22F3/02B22F3/10
Inventor 郭金艳
Owner 郭金艳
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