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Pump head production method

A production method and pump head technology, which are applied in the components of pumping devices for elastic fluids, pump components, variable displacement pump components, etc., can solve the problems of rough product surface, large resource consumption and high product cost, and achieve The effect of good roughness, low labor intensity and low scrap rate

Inactive Publication Date: 2010-03-17
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 pump head 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 manual casting of the mold 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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Embodiment 1

[0031] A production method of a pump head, which sequentially comprises the following production steps:

[0032] (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;

[0033] (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 also has sp...

Embodiment 2

[0040] A production method of a pump head, which sequentially comprises the following production steps:

[0041] (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;

[0042] (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 also has sp...

Embodiment 3

[0049] A production method of a pump head, which sequentially comprises the following production steps:

[0050] (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;

[0051] (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 also has sp...

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Abstract

The invention relates to a pump head production method, comprising the following steps: adding ferrous raw material into a medium-frequency electric furnace; heating the ferrous raw material to be molten into molten iron; carrying out reaction of the molten iron with a nodularizer and an alloy raw material to obtain alloy melt; making an iron mould sand lined die by using cast iron; and injectingthe alloy melt into the iron mould sand lined die. Through long-term study, the inventor makes strict control on the working temperature of the product, alloy pouring temperature and alloy pouring speed as well as retention time of cast parts in casting molds, and makes a breakthrough by adopting the iron mould sand lined die for foundry, thereby solving the technical problems of poor dimensionalprecision and low yield by using wet mould sand manually-made dies for a long term in the field.

Description

technical field [0001] The invention relates to a production method, in particular to a production method of a pump head. Background technique [0002] The production of the traditional pump head 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 manual casting of the mold The shape of the product results in rough 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 pump head production method with high yield, fine product surface and high production efficiency. [0004] Above-mentioned technical purpose of the present invention is achieved throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/10B22C9/00F04B53/00
Inventor 邱仲华
Owner 湖州鼎盛机械科技股份有限公司
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