Cast piece processing technology

A processing technology and casting technology, applied in the field of casting processing, can solve problems such as unstable casting quality, high labor intensity of workers, complex influencing factors, etc., and achieve the effects of fast melting speed, convenient melting, and flexible and simple operation

Inactive Publication Date: 2017-01-11
ANHUI FENGRUI METAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the castings formed by casting will have high labor intensity, unstable casting quality, short service life, complex influencing factors, and many defects.

Method used

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  • Cast piece processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A casting process, comprising the steps of:

[0024] 1) Ingredients: Select 750kg of smelted pig iron, 150kg of scrap steel, and 100kg of recycle materials, and stir and mix them.

[0025] 2) Smelting in the furnace: Put the prepared charge into a 2-ton intermediate frequency induction furnace to smelt the charge into molten iron. The input voltage of the medium frequency induction furnace is 380V, the output voltage is 750V, and the output frequency is 10kHz. The smelting time is 60 minutes, the smelting temperature is 1350°C, and the exhaust gas after smelting in the furnace is dust-collected by cloth bags.

[0026] 3) Composition detection: a molten iron composition analyzer is installed in front of the furnace to detect and adjust the composition of the molten iron.

[0027] 4) Molding: First put molding sand into the empty sand box, then put the foam plastic gasification mold into the sand box and make it stable; then fill the molding sand layer by layer accordin...

Embodiment 2

[0033] A casting process, comprising the steps of:

[0034] 1) Ingredients: Select 850kg of smelted pig iron, 100kg of steel scrap, and 50kg of recycled material, and stir and mix.

[0035] 2) Smelting in the furnace: Put the prepared charge into a 2-ton intermediate frequency induction furnace to smelt the charge into molten iron. The input voltage of the medium frequency induction furnace is 380V, the output voltage is 750V, and the output frequency is 10kHz. The smelting time is 30 minutes, the smelting temperature is 1500°C, and the waste gas after smelting in the furnace is dust-collected by cloth bags.

[0036] 3) Composition detection: a molten iron composition analyzer is installed in front of the furnace to detect and adjust the composition of the molten iron.

[0037] 4) Molding: First put molding sand into the empty sand box, then put the foam plastic gasification mold into the sand box and make it stable; then fill the molding sand layer by layer according to the...

Embodiment 3

[0043] A casting process, comprising the steps of:

[0044] 1) Ingredients: Select 800kg of smelted pig iron, 100kg of scrap steel, and 100kg of recycled materials, and stir and mix them.

[0045] 2) Smelting in the furnace: Put the prepared charge into a 2-ton intermediate frequency induction furnace to smelt the charge into molten iron. The input voltage of the medium frequency induction furnace is 380V, the output voltage is 750V, and the output frequency is 10kHz. The smelting time is 45 minutes, the smelting temperature is 1450°C, and the waste gas after smelting in the furnace is dust-collected by cloth bags.

[0046] 3) Composition detection: a molten iron composition analyzer is installed in front of the furnace to detect and adjust the composition of the molten iron.

[0047] 4) Molding: First put molding sand into the empty sand box, then put the foam plastic gasification mold into the sand box and make it stable; then fill the molding sand layer by layer according...

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Abstract

The invention discloses a cast piece processing technology, and relates to the technical field of casting processing. The cast piece processing technology comprises the steps of material proportioning, furnace melting, component detection, molding, casting, shot blasting, finishing polishing and final product warehousing. An intermediate frequency induction electric furnace is adopted to melt raw materials, so the melting kind can be easily transformed, the melting quality can be conveniently controlled, the operation is flexible and simple, the power density is large, the melting speed is large, the thermal efficiency is high, and initial melting is convenient; foundry returns can be repeatedly used, so the utilization rate of the raw materials is improved, and enterprises' production cost is reduced; exhaust gas obtained after the furnace melting undergoes cloth bag dedusting, so exhaust gas pollution is effectively reduced; and surface shot blasting, polishing treatment and modification of a cast piece formed by casting improve the quality of the cast piece, and surface antirust treatment of the cast piece effectively prolongs the service life of the cast piece.

Description

technical field [0001] The invention relates to the technical field of casting processing, in particular to a casting processing technology. Background technique [0002] Casting is the process of smelting metal into a liquid that meets certain requirements and pouring it into a mold, cooling and solidifying, and cleaning to obtain a casting with a predetermined shape, size and performance. Because the casting blank is almost formed, the purpose of free machining or a small amount of machining reduces the cost and reduces the production time to a certain extent. [0003] With the advancement of science and technology and the vigorous development of the foundry industry, casting is one of the basic processes of the modern device manufacturing industry. Materials often used in casting production include various metals, coke, wood, plastics, gas and liquid fuels, molding materials, etc. The required equipment includes various furnaces for metal smelting, various sand mixers f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/04
Inventor 丰收
Owner ANHUI FENGRUI METAL PROD
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