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美国专利US8771789本发明供液管包括一个陶瓷内管和与之相复合的钢制外管,供液管用于连接熔化炉和压铸机的柱塞套管。此外,本发明方法包括在外层钢管的内圆周表面上制备一层Ni合金层,将外层钢管埋在Ti C颗粒中,并将Ti C颗粒粘合在Ni合金层表面,然后将陶瓷内管放入内圆周表面粘合有Ti C颗粒的钢制外管中。
U.S. Patent No. 8,771,789 The liquid supply pipe of the present invention comprises a ceramic inner pipe and a steel outer pipe in combination with the liquid pipe for connecting the plunger barrel of the melting furnace and the die casting machine. In addition, the method of the present invention comprises preparing a Ni alloy layer on the inner circumferential surface of an outer steel pipe, embedding the outer steel pipe in the TiC particles and bonding the TiC particles on the surface of the Ni alloy layer, and then placing the ceramic inner pipe Into the outer peripheral surface of the steel tube bonded TiC particles.