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Method of manufacturing heat-resistant component

A component and heat-resistant technology, applied in transportation and packaging, metal processing equipment, etc., can solve problems such as difficult three-dimensional control linear shrinkage, large linear shrinkage, etc.

Inactive Publication Date: 2017-07-21
PIM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the metal powder injection molding method shows considerable linear shrinkage, and has a problem that it is difficult to three-dimensionally control the linear shrinkage

Method used

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  • Method of manufacturing heat-resistant component

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0111] According to the contents shown in Table 1 below, a mixture comprising metal powder, polyvinyl butyral and ethanol was prepared. A container with a volume of 1000 ml and a ball mill are used. According to the conditions shown in Table 1 below, a mixture was prepared by mixing metal powder, polyvinyl butyral, and ethanol at room temperature for 1 hour.

[0112] As the metal powder, HK-30 manufactured by Parmaco (Visingen, Switzerland) with an average particle diameter of 5 μm to 9 μm was used. HK-30 contains 0.20 to 0.50% by weight of carbon (C), 24 to 27% by weight of chromium (Cr), 19 to 22% by weight of nickel (Ni), 0.75 to 1.30% by weight of silicon (Si), more than 0 And less than or equal to 1.5% by weight of manganese (Mn), 0.2 to 0.3% by weight of molybdenum (Mo), 1 to 1.75% by weight of niobium (Nb), and the rest of iron (Fe) and unavoidable impurities.

[0113] 【Table 1】

[0114]

[0115] Such as Figure 6 As shown, pellets were prepared by injecting the ...

example 2

[0119] A heat-resistant component was manufactured by the same method as in Example 1, except that a mixture was prepared using the components and contents summarized in Table 2 below.

[0120] 【Table 2】

[0121]

example 3

[0123] Except at 600MPa (ie, 6.12 tons / cm 2 ) under the pressure of compression molding, by the same method as Example 1 to manufacture heat-resistant components.

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PUM

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Abstract

Disclosed is a method of manufacturing a heat-resistant component. More particularly, the method of manufacturing a heat-resistant component includes a step of preparing granules by spraying a mixture including metal powder and a slurry material into a housing equipped with a disc and rotating the disc; a step of preparing a molded object by compression-molding the granules; a step of preparing a sintered object by sintering the molded object at about 1,000 DEG C to about 1,600 DEG C; and a step of adjusting dimensions by cutting the sintered object, wherein the housing is sealed and hot air at about 70 DEG C to about 200 DEG C is supplied into the housing.

Description

[0001] Cross-references to related applications [0002] This application claims the benefit of Korean Patent Application No. 10-2015-0187154 filed with the Korean Intellectual Property Office on December 28, 2015, the entire disclosure of which is hereby incorporated by reference. technical field [0003] The present invention relates to a method of making heat resistant components using granules. Background technique [0004] Recently, the demand for industrial parts with excellent dimensional accuracy and mechanical properties has been increasing. [0005] Such industrial components can be manufactured using powder metallurgy techniques, metal powder injection molding techniques, etc. Powder metallurgy is the technique of manufacturing a shaped metal body with a predetermined shape by compression molding metal powder and then sintering the metal powder. [0006] figure 1 The powder metallurgy method is shown. refer to figure 1 , the powder metallurgy method may inclu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/00B22F3/16C22C30/00C22C27/06C22C38/56C22C38/34C22C38/02C22C38/58C22C38/04C22C38/60B22F1/065B22F1/10B22F1/102B22F1/103B22F1/107B22F1/14
CPCB22F3/16C22C27/06C22C38/002C22C38/02C22C38/04C22C38/34C22C38/56C22C38/58C22C38/60B22F1/103B22F1/065B22F1/14B22F1/10B22F1/102B22F1/107B22F2998/10B22F9/10B22F3/02B22F3/225B22F3/1021B22F2003/247B22F5/106C22C19/058C22C30/00C22C38/08C22C38/38C22C38/40B22F3/24B22F2301/15B22F2301/20B22F2301/35B22F2302/45
Inventor 郑载玉权相九林荣珉严京和金玟澈朴相民李浩镇
Owner PIM CORP
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