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Composite casting technology

A composite casting and process technology, applied in the field of composite casting technology, can solve problems such as high cost and single material, and achieve the effects of fast time, reduction of secondary processing, and high repair quality

Inactive Publication Date: 2003-03-26
国成军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing casting processes are single-material, one-time pouring casting, such as cast steel, cast iron, cast copper, etc. The castings of wear-resistant high-alloy steel are made of high-quality materials inside and outside, and the cost is high
In addition, because the existing casting process is one-time pouring, most of the external repair and regeneration of worn-out metal parts currently use welding process, and there is no repair and regeneration composite casting process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The internal material is ordinary steel, and the external working surface is a composite casting process of wear-resistant high-alloy steel, including the following steps:

[0019] (1) Design the size of the casting for the second casting; reserve the position for the thickness of the second casting;

[0020] (2) According to the conventional casting process and the size of the first pouring casting, cast a one-time pouring ordinary steel casting;

[0021] (3) Make a pattern for secondary pouring on the surface of the primary casting casting. The material of this pattern can be wood, gypsum, polystyrene foam, polyurethane, etc.;

[0022] (4) Remake the sand mold for secondary pouring, the sand mold material can be fireproof coating, iron shot, sand for casting, etc.;

[0023] (5) The primary pouring casting is connected with the sand mold for secondary pouring, and a cavity for secondary pouring is formed between the primary pouring casting and the sand mold for second...

Embodiment 2

[0028] The regenerative composite casting process for the external repair of worn-out metal parts includes the following steps:

[0029] (1) Design the size of the repaired casting;

[0030] (2) Make a pattern for secondary pouring on the surface of the metal parts that have been lost. The material of this pattern can be wood, gypsum, polystyrene foam, polyurethane, etc.;

[0031] (3) Sand molds for remaking pouring, sand mold materials can be fire-resistant paint, iron shot, sand for casting, etc.;

[0032] (4) The metal parts that have been lost are connected with the sand mold for secondary casting, and the cavity for secondary casting is formed between the worn metal parts and the sand mold for secondary casting;

[0033] (5) The metal parts that have been lost are sent to the drying kiln together with the sand mold for the second pouring, the sand mold is dried, and heated to 1000 ° C ~ 1800 ° C, the heating temperature is determined by the material of the second pouring...

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Abstract

The composite casting process includes the following steps: 1. designing twice or more than twice pouring casting size; 2. casting out primary poured casting; 3. making pattern for secondary pouring on the primary poured casting surface of surface of damaged metal component; 4. moulding sand mould for pouring; 5. using primary poured casting or damaged metal component and secondary pouring sand mould to form mould cavity for secondary pouring; 6. feeding them into drying kiln and drying sand mould; 7. after the sand mould is heated, taking out the sand mould from kiln, maing secondary pouring; and 8. cleaning sand mould material from casting system.

Description

technical field [0001] The invention relates to a composite casting process in which one casting contains two or more materials in the metallurgical casting industry, especially the internal material is ordinary steel, the external working surface is wear-resistant high-alloy steel, or the metal parts that have been worn out Composite casting process for external restoration and regeneration. Background technique [0002] Existing casting processes are single-material, one-time pouring casting, such as cast steel, cast iron, cast copper, etc. The castings of wear-resistant high-alloy steel are made of high-quality materials inside and outside, and the cost is high. In addition, because the existing casting process is one-time pouring, most of the external repair and regeneration of worn metal parts currently use welding technology, and no repair and regeneration composite casting technology has been used. Contents of the invention [0003] The purpose of the present inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/08B22D19/10B22D19/16
Inventor 国成军
Owner 国成军
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