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Powder metallurgy automobile ABS speed sensing disk and method for preparing same

A powder metallurgy and speed technology, applied in the field of powder metallurgy speed detection disc and its preparation, to achieve the effects of high yield, uniform quality and few steps

Active Publication Date: 2013-02-13
扬州保来得科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the special requirements for the shape of the product, strict tolerances for the outer diameter, and strict requirements for the metallographic structure of the product, according to such strict technical requirements, the general production method and the traditional powder metallurgy process cannot meet the requirements.

Method used

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  • Powder metallurgy automobile ABS speed sensing disk and method for preparing same
  • Powder metallurgy automobile ABS speed sensing disk and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] After mixing Cu powder, Fe powder, C powder and Mo powder evenly, put them into a molding machine for molding; the parts by weight of each component are: Cu: 3.0, C: 1.0, Mo: 2.0, and the rest is Fe powder; Control the temperature at 1050°C, sinter; oil immerse in anti-rust oil once; process and dry oil in sequence; sandblasting and Dacromet in sequence, and the powder metallurgy automotive ABS speed detection plate is prepared.

[0022] After testing, the invented powder metallurgy automotive ABS speed detection disc, its shape, hardness and precision can meet the requirements of use, the hardness Hv10 is 70, and the salt spray test is 500 hours; the adhesion of Dacromet is above 3.5; parallel The density is below 0.10mm; the density of any part is above 6.8g / cm3.

Embodiment 2

[0024] After mixing Cu powder, Fe powder, C powder and Mo powder evenly, put them into a molding machine for molding; the parts by weight of each component are: C: 0.30, Mo: 1.0, and the rest is Fe powder; temperature control 1200°C , sintering; oil immersion anti-rust oil; sequential processing and oil drying; sequential sandblasting and Dacromet, that is, the preparation of powder metallurgy automobile ABS speed detection plate.

[0025] After testing, the invented powder metallurgy automobile ABS speed detection disc, its shape, hardness and precision can meet the requirements of use, the hardness Hv10 is above 65, the salt spray test is more than 485 hours; the adhesion of dacromet is above 3.5 ; Parallelism below 0.10mm; Density above 6.8g / cm3.

Embodiment 3

[0027] After mixing Cu powder, Fe powder, C powder and Mo powder evenly, put them into a molding machine for molding; the parts by weight of each component are: Cu: 1.0, C: 0.70, Mo: 1.5, and the rest is Fe powder; Temperature control at 1120°C, sintering; oil immersion in anti-rust oil; sequential processing and oil drying; sequential sandblasting and dacromet, the powder metallurgy automobile ABS speed detection plate is prepared.

[0028] After testing, the invented powder metallurgy automotive ABS speed detection disc, its shape, hardness and precision can meet the requirements of use, the hardness Hv10 is above 60, the salt spray test is more than 480 hours; the adhesion of Dacromet is above 3.5 ; Parallelism below 0.10mm; Density above 6.8g / cm3.

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Abstract

The invention discloses a powder metallurgy automobile ABS speed sensing disk and a method for preparing the same. The sensing disk comprises a gear body provided with a central hole, the end face on one side of the gear body is provided with a tooth shape, and the end face on the other side of the gear body is provided with a lug boss. The preparation method comprises the following steps: in certain proportion, evenly mixing Cu powder, Fe powder, C powder and Mo powder and then forming in a forming machine; controlling the temperature to between 1,050 and 1,200 DEG C, and performing sintering; performing primary oil immersion of anti-rust oil; orderly performing processing and oil heating; and orderly performing sand spraying and Dacrome to prepare the sensing disk. The shape, hardness and precision of the sensing disk prepared by the method all meet use requirements. The preparation method has the advantages of less steps and simple operation; and the products prepared have good uniformity and high yield, and meet the life testing requirements through durability tests.

Description

technical field [0001] The invention relates to a powder metallurgy speed detection board and a preparation method thereof, in particular to a powder metallurgy automobile ABS speed detection board and a preparation method thereof. Background technique [0002] This product is used in automobile ABS system for magnetic field line sensing, the faster the speed, the higher the voltage, and the feedback signal is converted into speed sensing by the system. The product needs to ensure that the inner and outer diameters must be wear-resistant and have certain strength requirements. Due to the special requirements for the shape of the product, strict tolerances for the outer diameter, and strict requirements for the metallographic structure of the product, according to such strict technical requirements, general production methods and traditional powder metallurgy methods cannot meet them. Contents of the invention [0003] Purpose of the invention: Aiming at the deficiencies i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/176B22F3/10B22F3/26
Inventor 刘文雄徐同官劲松胡云峰朱嵩
Owner 扬州保来得科技实业有限公司
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