Method for producing engine gear case

A production method and technology of gear chamber, which are applied in casting molding equipment, casting molds, cores, etc., can solve the problems of rough product surface, slow production speed and high product cost, and achieve good roughness, improved production efficiency, and scrap rate. low effect

Active Publication Date: 2013-03-20
湖州鼎盛机械科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The production of the traditional engine gear chamber adopts the old-fashioned casting method, using the cupola as the raw material melter, and the casting mold relies on manual modeling. The burning of fuel in the cupola not only consumes a lot of resources, is inefficient, but also produces a lot of environmental pollution; the casting mold Manual modeling, resulting in rough product surface and low precision, especially the inner surface of the product; the overall process production speed is slow, the yield is low, resulting in high product cost

Method used

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  • Method for producing engine gear case
  • Method for producing engine gear case

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Effect test

Embodiment 1

[0028] A production method for an engine gear chamber, which sequentially comprises the following production steps:

[0029] (1) After adding the iron-containing raw materials into the intermediate frequency electric furnace, the iron-containing raw materials are heated to melt the iron-containing raw materials into molten iron. The iron-containing raw materials include pig iron, scrap steel, recycled materials, and ferrosilicon and ferromanganese, pig iron is an iron-carbon alloy with a carbon content between 2% and 4.3%, scrap steel is a variety of steel products recycled, and returned materials are defective products and waste products produced. Ferrosilicon and ferromanganese are respectively silicon-containing Iron alloy with manganese to adjust the content of silicon and manganese in the product;

[0030] (2) Put the spheroidizing agent and alloy raw materials into the ladle, the spheroidizing agent is ReMg 3-8, the alloy raw materials are copper and magnesium, and magne...

Embodiment 2

[0037] A production method for an engine gear chamber, which sequentially comprises the following production steps:

[0038] (1) After adding the iron-containing raw materials into the intermediate frequency electric furnace, the iron-containing raw materials are heated to melt the iron-containing raw materials into molten iron. The iron-containing raw materials include pig iron, scrap steel, recycled materials, and ferrosilicon and ferromanganese, pig iron is an iron-carbon alloy with a carbon content between 2% and 4.3%, scrap steel is a variety of steel products recycled, and returned materials are defective products and waste products produced. Ferrosilicon and ferromanganese are respectively silicon-containing Iron alloy with manganese to adjust the content of silicon and manganese in the product;

[0039] (2) Put the spheroidizing agent and alloy raw materials into the ladle, the spheroidizing agent is ReMg 3-8, the alloy raw materials are copper and magnesium, and magne...

Embodiment 3

[0046] A production method for an engine gear chamber, which sequentially comprises the following production steps:

[0047] (1) After adding the iron-containing raw materials into the intermediate frequency electric furnace, the iron-containing raw materials are heated to melt the iron-containing raw materials into molten iron. The iron-containing raw materials include pig iron, scrap steel, recycled materials, and ferrosilicon and ferromanganese, pig iron is an iron-carbon alloy with a carbon content between 2% and 4.3%, scrap steel is a variety of steel products recycled, and returned materials are defective products and waste products produced. Ferrosilicon and ferromanganese are respectively silicon-containing Iron alloy with manganese to adjust the content of silicon and manganese in the product;

[0048] (2) Put the spheroidizing agent and alloy raw materials into the ladle, the nodulizing agent is ReMg3-8, the alloy raw materials are copper and magnesium, and magnesium...

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Abstract

The invention provides a method for producing an engine gear case. The method comprises the following steps of: adding raw materials containing iron into an intermediate frequency electric furnace, melting the raw materials containing iron into molten iron by heating, performing a reaction of the molten iron, the modulizer and alloy materials to obtain molten alloy, forming a metal-back shell mold by cast iron, and pouring the molten alloy into the metal-back shell mold; and after a long-time research by an inventor, the working temperature of products, the pouring temperature and the pouring speed of the alloy and the stay time of a casting in the casting mold are strictly controlled, and the metal-back shell mold is a breakthrough adoption for casting, so that the technical problems existing in the field that the dimensional precision is poor and the yield rate due to artificial production of the mold by using green sand for a long time are solved.

Description

technical field [0001] The invention relates to a production method, in particular to a production method of an engine gear chamber. Background technique [0002] The production of the traditional engine gear chamber adopts the old-fashioned casting method, using the cupola as the raw material melter, and the casting mold relies on manual modeling. The burning of fuel in the cupola not only consumes a lot of resources, is inefficient, but also produces a lot of environmental pollution; the casting mold Manual modeling results in rough product surface and low precision, especially the inner surface of the product; the overall process production speed is slow and the yield is low, resulting in high product cost. Contents of the invention [0003] The purpose of the present invention is to provide a production method of an engine gear chamber with high yield, fine product surface and high production efficiency. [0004] Above-mentioned technical purpose of the present invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/22B22D1/00B22D25/02
Inventor 邱仲华
Owner 湖州鼎盛机械科技股份有限公司
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