| | |
| | Production technique of vermicular graphite iron cylinder head of vehicle diesel engine |
| | The 25 years’ production and application have proved that vermicular graphite iron cylinder heads with vermicularity ≥50% satisfy the machinability and performance demand of diesel engine. The method, in which using cupola-induction furnace duplex melting and pour-over process with rare earth-ferrosilicon or rare earth-silicon compound as vermicularizing alloy plus rare earth-magnesium-ferrosilicon as stirring alloy, is an optimal vermicularizing process for obtaining satisfied vermicularity. Using top kiss risers, enlarging kissing areas and expanding covering width and making ingates to freeze earlier are the effective measures to eliminate shrinkage, blowhole and oxide inclusions in the vermicular graphite iron cylinder heads.
【分类号】：TG255
【DOI】：CNKI:SUN:ZZAF.0.2008-03-004
【正文快照】：
In 1983 Wuxi Diesel Engine Works began to produce 6110 model diesel engine for ‘Jiefang’ brand trucks produced by China First Automobile Works. The engine has 6 cylinders with overall dimension of 871 mm × 240 mm × 110 mm, main wall thickness of 5.5 m… |
| |
|
| |  推荐 CAJ下载  PDF下载 |
| | CAJViewer7.0阅读器支持所有CNKI文件格式，AdobeReader仅支持PDF格式 |
|
| | Production technique of vermicular graphite iron cylinder head of vehicle diesel engine |
| | Zhou Gen1 and Liu Wanhua2 (1.Wuxi Diesel Engine Works;China First Automobile Group Co. Ltd.;Wuxi 214026;China; 2. Wuxi FAW Foundry Co. Ltd.;China First Automobile Group Co. Ltd.;Wuxi 214026;China) |
| | The 25 years’ production and application have proved that vermicular graphite iron cylinder heads with vermicularity ≥50% satisfy the machinability and performance demand of diesel engine. The method, in which using cupola-induction furnace duplex melting and pour-over process with rare earth-ferrosilicon or rare earth- silicon compound as vermicularizing alloy plus rare earth-magnesium-ferrosilicon as stirring alloy, is an optimal vermicularizing process for obtaining satisfied vermicularity.Using top kiss risers, enlarging kissing areas and expanding covering width and making ingates to freeze earlier are the effective measures to eliminate shrinkage, blowhole and oxide inclusions in the vermicular graphite iron cylinder heads.
【Keyword】：vermicular cast iron;cylinder head;melting and treating process;casting method |