【摘要】 20世纪 90年代初 ,我国引进硅溶胶制壳精铸工艺 ,经过 10余年的发展 ,已经形成拥有 40 0余家企业 ,年产量约 10万t ,年产值约 5 0亿元的行业。由于我国精铸件成本低廉 ,具有价格竞争优势 ,同时 ,多数出口企业经过市场的磨炼 ,无论在工艺技术的掌握方面 ,还是在现代企业的管理方面都取得了长足的进步 ,使这一行业发展前景十分广阔。更多还原

【Abstract】 Shell-making technology in sol silicate was introduced into China’s market in the 1990 s.A new trade with over 400 enterprises and about 100 000 t product volume per year as well as 5 billions product value appears in the China through the development for over decade.The castings in investment casting in the China have the advantages of cost-efficiency and stridely advance in the master of technology and management,so the trade has a wide perspective in the China.更多还原