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去年十二月初,六机部在我厂召开了冷硬呋喃树脂砂推广应用现场会议。冷硬呋喃树脂砂具有一般型砂所没有的突出优点,受到了与会者的称赞和重视。为了做好这一新型造型工艺的推广应用工作,特于此作一介绍。一、研究呋喃树脂砂的由来我厂原先在生产12000马力大功率柴油机汽缸盖时,夹层型芯都是采用石墨油砂制造,往往因此发生热裂,影响产品质量和生产进度。几
In early December last year, the six machine ministries held a site meeting on the promotion and application of chilled furan resin sand in our factory. Chilled furan resin sand has the outstanding advantages of the general type of sand has been praised by participants and attention. In order to do a good job of popularization and application of this new modeling process, especially for this introduction. First, the study of furan resin sand Origin I plant the original production of 12,000 horsepower high-power diesel engine cylinder head, the sandwich core is made of graphite oil sand, often resulting in thermal cracking, affecting product quality and production progress. a few