US2020368819A1PendingUtilityA1

Powder feed for injection molding process

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Assignee: CHAMP TECH OPTICAL FOSHAN CORPPriority: Nov 27, 2018Filed: Aug 14, 2020Published: Nov 26, 2020
Est. expiryNov 27, 2038(~12.3 yrs left)· nominal 20-yr term from priority
Inventors:Jin ZhuDung-Chang Yeh
B22F 1/10B22F 1/148B22F 1/06B22F 3/225B22F 3/11B22F 3/1143C23F 1/28B22F 2999/00B22F 2301/35B22F 3/24B22F 2003/241C22C 33/0285B22F 3/1103B22F 3/227B22F 3/16B22F 2998/10B22F 3/10B22F 1/0059B22F 1/0007B22F 1/0096
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Claims

Abstract

A powder feed for injection molding process includes a first metal powder, and a second metal powder. The first metal powder and the second metal powder are mixed together evenly. The second metal powder has a mass percentage of about less than 10% of a total mass of the powder feed for injection molding process. The first metal powder is resistant to the corrosion by a chemical reagent, and the second metal powder is corrodible in the chemical reagent.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A powder feed for injection molding process, comprising:
 a first metal powder, and   a second metal powder, wherein the first metal powder and the second metal powder are mixed together evenly; the second metal powder has a mass percentage of about less than 10% of a total mass of the powder feed for injection molding process; the first metal powder is resistant to the corrosion by a chemical reagent, and the second metal powder is corrodible in the chemical reagent.   
     
     
         2 . The powder feed for injection molding process of  claim 1 , wherein the first metal powder is stainless steel metal powder. 
     
     
         3 . The powder feed for injection molding process of  claim 2 , wherein the stainless steel metal powder is at least one of 17-4 PH, 316L and SKD61. 
     
     
         4 . The powder feed for injection molding process of  claim 1 , wherein particles of the first metal powder are micron-sized. 
     
     
         5 . The powder feed for injection molding process of  claim 1 , wherein the second metal powder is at least one of a carbon-based iron powder and a low carbon steel-based alloy powder. 
     
     
         6 . The powder feed for injection molding process of  claim 5 , wherein the second metal powder is G1010, a carbon-based iron powder. 
     
     
         7 . The powder feed for injection molding process of  claim 1 , wherein particles of the second metal powder are micron-sized. 
     
     
         8 . The powder feed for injection molding process of  claim 1 , wherein the injection molding feed further comprises a binder, the first metal powder, the second metal powder, and the binder are mixed together evenly 
     
     
         9 . The powder feed for injection molding process of  claim 8 , wherein the binder has a mass percentage of about less than 10% of the total mass of the powder feed for injection molding process.

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