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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, long production time, and many processing equipment, and achieve the effects of simple process, improved processing efficiency and less personnel input.

Active Publication Date: 2011-07-27
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
  • Production technique of combination type gear

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A production process for combined gears, consisting of the following steps:

[0027] Step 1, weigh 65 kilograms of iron powder, 25 kilograms of copper powder, and 10 kilograms of carbon powder and put them in a blender and stir to form a mixed powder;

[0028] Step 2, the mixed powder is pressed through a mold die-casting machine with a pressure of 63 tons and a time of 1 minute to form a combined gear blank (big gear 1, pinion 2);

[0029] Step 3: Put the combined gear blank (big gear 1, pinion 2) into a high-temperature sintering furnace for high-temperature sintering. The temperature is controlled 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°C. ℃, time 150 minutes, the final temperature control 950 ℃, time 60 minutes, and then quenching;

[0030] Step 4, finally, after the surface is blackened, it becomes a CD4 type combined gear product (big gear 1, pinion gear 2), 8000 in total....

Embodiment 2

[0032] A production process for combined gears, consisting of the following steps:

[0033] Step 1, weigh 65 kilograms of iron powder, 25 kilograms of copper powder, and 10 kilograms of carbon powder and put them in a blender and stir to form a mixed powder;

[0034] Step 2, the mixed powder is pressed through a mold die-casting machine with a pressure of 100 tons and a time of 1 minute to form a combined gear blank (large gear 1, pinion 2);

[0035] Step 3: Put the combined gear blank (big gear 1, pinion 2) into a high-temperature sintering furnace for high-temperature sintering. The temperature is controlled 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°C. ℃, time 150 minutes, the final temperature control 950 ℃, time 60 minutes, and then quenching;

[0036] Step 4. Finally, after the surface is blackened, it becomes a CD2 type combined gear product (large gear 1, pinion 2), 4000 in total....

Embodiment 3

[0038] A production process for combined gears, consisting of the following steps:

[0039] Step 1, weigh 65 kilograms of iron powder, 25 kilograms of copper powder, and 10 kilograms of carbon powder and put them in a blender and stir to form a mixed powder;

[0040] Step 2, the mixed powder is pressed through a mold die-casting machine with a pressure of 200 tons and a time of 1 minute to form a combined gear blank (big gear 1, pinion 2);

[0041] Step 3: Put the combined gear blank (big gear 1, pinion 2) into a high-temperature sintering furnace for high-temperature sintering. The temperature is controlled 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°C. ℃, time 150 minutes, the final temperature control 950 ℃, time 60 minutes, and then quenching;

[0042] Step 4. Finally, after the surface is blackened, it becomes a CDW type combined gear product (large gear 1, pinion 2), 2000 in total.

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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 an important part of an electric operating mechanism of a low-voltage electrical appliance, especially a production process of a combined gear. Background technique [0002] The combined gear, consisting of a large gear 1 and a small gear 2, is an important part for quality assurance in electric operating mechanism products. The traditional production and processing technology of this product currently on the market adopts the following process flow: [0003] In the first step, the iron billet is blanked into a large gear blank and a pinion blank through a sawing machine; [0004] In the second step, the large gear blank and the pinion blank are respectively subjected to a heat treatment process; [0005] In the third step, the large gear blank and the pinion blank are respectively filed into a large gear blank and a pinion blank through a lathe; [0006] In the fourth step, the large gear blank and t...

Claims

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Application Information

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Patent Type & Authority Patents(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