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Secondary infiltration technology for gear forming

A gear and process technology, applied in the field of secondary infiltration process, can solve the problems of high process cost, low performance, poor strength and wear resistance, and achieve the effect of optimizing traditional process, simple molding process and excellent mechanical properties

Inactive Publication Date: 2019-06-25
广州市光铭金属制品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the gear forming process in the market is often based on the traditional process. The traditional process is complex, the gear forming process is cumbersome, the use value is not high, the process cost is extremely high, the mechanical properties of the formed gear are low, and it is difficult to improve the compactness, strength and wear resistance of the gear. All are poor, unable to meet customer requirements for products, low performance in the field of peers and poor promotion

Method used

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  • Secondary infiltration technology for gear forming

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Embodiment Construction

[0024] see figure 1 Shown, the technical scheme that this specific embodiment adopts is: it comprises the following steps:

[0025] Step 1, placing the metallurgical powder in a grinder for grinding, and sieving after grinding to obtain the sieved metallurgical powder;

[0026] Step 2. Place the sieved metallurgical powder in the gear forming machine for compression molding to obtain a compression density of 6.6-6.8 gear blanks,

[0027] Step 3. Place the gear blank in a sintering furnace for sintering, the sintering temperature is 1120 degrees Celsius, during which the protective gas is continuously filled, and after sintering, it is naturally cooled to obtain a gear sintered part;

[0028] Step 4, placing the pure copper sheet in a melting furnace with a temperature of 900 degrees Celsius for melting to obtain molten copper;

[0029] Step 5. Let the molten copper naturally penetrate into the gaps in the gear sintered parts, fill the gaps, form an alloy with the basic str...

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Abstract

The invention discloses a secondary infiltration technology for gear forming, and relates to the technical field of the gear machining technology. According to the work principle of the secondary infiltration technology, metallurgy powder is placed in a grinding machine to be subjected to grinding treatment, screening is conducted after grinding, and screened metallurgy powder is obtained; and thescreened metallurgy powder is placed in a gear forming machine to be pressed and formed, a gear blank with the pressing density being 6.6-6.8 is obtained, the gear blank is placed in a sintering furnace to be sintered, the sintering temperature is 1,120 DEG C, and protective gas is continuously inflated in the process. After the above technical scheme is adopted, the secondary infiltration technology has the beneficial effects that a traditional technology is optimized, the forming technology is simplified, the usage value is high, the technology cost is low, the mechanical performance of a formed gear is excellent, compactness of the gear is improved, strength and abrasion resistance can be improved by 15%-30%, and the requirements of customers for products can be met; and compared withconventionally treated and manufactured gears, the mechanical performance is improved by 50%, the performance in the same industry field is excellent, and generalization performance is high.

Description

technical field [0001] The invention relates to the technical field of gear processing technology, in particular to a secondary infiltration process for gear forming. Background technique [0002] A gear is a mechanical element with gears on the rim that continuously mesh to transmit motion and power. [0003] In 2010, the total industrial output value of the entire gear industry was 94.635 billion yuan, and the market demand for the entire gear industry exceeded 140 billion yuan, ranking second in the world. Judging from various factors such as scale and sales, the gear industry has become a "leading" industry in the field of basic parts for general machinery parts in China. [0004] As competition in the gear industry continues to intensify, mergers and acquisitions among large-scale gear companies and capital operations are becoming increasingly frequent, and domestic excellent gear manufacturers are paying more and more attention to the research of the industry market, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F5/08B22F3/10
Inventor 林暖辉
Owner 广州市光铭金属制品有限责任公司
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