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Production technique of combination type gear

A production process and combined technology, applied in the field of combined gear production technology, can solve the problems of complex processing technology, many processing equipment, long production time, etc., and achieve the effect of simple process, less personnel input, and improved processing efficiency.

Active Publication Date: 2009-03-11
SUZHOU FUTURE ELECTRICAL APP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Due to the complex processing technology of this product, the production time is long and the cost is high; at the same time, it needs a lot of processing equipment and large investment; the semi-finished large gear and pinion are riveted into a combined gear, the yield is not high, and the quality is not reliable

Method used

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  • Production technique of combination type gear

Examples

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Effect test

Embodiment 1

[0027] A production process of combined gears consists of the following steps:

[0028] Step 1: Weigh 65 kg of iron powder, 25 kg of copper powder, and 10 kg of carbon powder in a mixer and mix them evenly into mixed powders;

[0029] Step 2: Press the mixed powder through a die casting machine with a pressure of 63 tons and a time of 1 minute to form a combined gear blank (large gear 1, small gear 2);

[0030] Step 3: Put the combined gear blanks (large gear 1, small gear 2) into a high-temperature sintering furnace for high-temperature sintering. The temperature control is first at 650°C for 30 minutes, then the temperature is controlled at 850°C for 60 minutes, and then the temperature is controlled at 1150 ℃, time 150 minutes, finally temperature control 950 ℃, time 60 minutes, then quenching;

[0031] Step 4. Finally, after the surface is blackened, it becomes a CD4 type combined gear product (large gear 1, small gear 2), a total of 8000 pieces.

Embodiment 2

[0033] A production process of combined gears consists of the following steps:

[0034] Step 1: Weigh 65 kg of iron powder, 25 kg of copper powder, and 10 kg of carbon powder in a mixer and mix them evenly into mixed powders;

[0035] Step 2: Press the mixed powder through a die-casting machine with a pressure of 100 tons and a time of 1 minute to form a combined gear blank (large gear 1, small gear 2);

[0036] Step 3: Put the combined gear blanks (large gear 1, small gear 2) into a high-temperature sintering furnace for high-temperature sintering. The temperature control is first at 650°C for 30 minutes, then the temperature is controlled at 850°C for 60 minutes, and then the temperature is controlled at 1150 ℃, time 150 minutes, finally temperature control 950 ℃, time 60 minutes, then quenching;

[0037] Step 4. Finally, after the surface is blackened, it becomes a CD2 type combined gear product (large gear 1, small gear 2), a total of 4000 pieces.

Embodiment 3

[0039] A production process of combined gears consists of the following steps:

[0040] Step 1: Weigh 65 kg of iron powder, 25 kg of copper powder, and 10 kg of carbon powder in a mixer and mix them evenly into mixed powders;

[0041] Step 2: Press the mixed powder through a die casting machine with a pressure of 200 tons and a time of 1 minute to form a combined gear blank (large gear 1, small gear 2);

[0042] Step 3: Put the combined gear blanks (large gear 1, small gear 2) into a high-temperature sintering furnace for high-temperature sintering. The temperature control is first at 650°C for 30 minutes, then the temperature is controlled at 850°C for 60 minutes, and then the temperature is controlled at 1150 ℃, time 150 minutes, finally temperature control 950 ℃, time 60 minutes, then quenching;

[0043] Step 4. Finally, after the surface is blackened, it becomes a CDW type combined gear product (large gear 1, small gear 2), a total of 2000 pieces.

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Abstract

The invention discloses a production technique of a combined gear which has a stable and simple technique and can greatly reduce the cost. The steps of production technique are as follows: a certain amount of iron powder, copper powder and carbon powder are arranged in a stirring machine and is stirred uniformly at first; then the mixed powder is pressed and shaped by a die casting machine; the blank of the combined gear is arranged in a high temperature sintering furnace for high temperature sintering and quenching; after blackening, the blank becomes the combined gear product. The production technique has the advantages that the iron powder, copper powder and carbon powder are adopted and shaped at one time by the die casting machine; no cutting techniques are adopted; the technique is simple and the steps are less; the processing efficiency of the product is improved by more than 15 times; the consistency of the product produced by one time shaping is good and the quality is stable; the investments on the devices and personnel in the technique are less; the technique can be widely used for the important part products of the electric operation mechanism of a low voltage electric apparatus.

Description

Technical field [0001] The invention relates to a production process of important parts of an electric operating mechanism of a low-voltage electrical appliance, in particular to a production process of a combined gear. Background technique [0002] The combined gear, consisting of the large gear 1 and the small gear 2, is an important part of the electric operating mechanism product to ensure the quality. At present, the traditional production and processing technology of this product on the market adopts the following process: [0003] In the first step, the iron blanks are cut into large gear blanks and small gear blanks respectively through the sawing machine; [0004] The second step is to pass the large gear blank and the small gear blank through the heat treatment process respectively; [0005] The third step is to file the large gear blank and the small gear blank into a large gear blank and a small gear blank through a lathe; [0006] In the fourth step, the large gear b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/16B22F5/08
Inventor 徐惠兴龚云龙楼铭达毛海峰
Owner SUZHOU FUTURE ELECTRICAL APP
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