But the lost wax casting technique is difficult to master.

但这种脱蜡铸造工艺法并非容易掌握.

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The principle and process flow of dewaxing using double membranes were described.

阐述了食用油双膜法脱蜡工艺的技术原理及工艺流程.

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Metal Injection Molding, One step Vacuum de - wax sintering process, Powder metallurgy monthly.

1金属粉末射出成型真空一次 脱蜡 烧结法, 粉末冶金月刊.

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Dewaxing with over - temperature autoclave, overpressure alarm function.

脱蜡釜设有超温 、 超压报警功能.

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Finally , the defects are eliminated completely by optimizing the techniques of wax - losing and melting.

通过优化脱蜡和熔炼工艺, 使得铸件内的点缺陷得到了很好的控制.

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Lost - wax casting : Traditional method of producing molds for metal sculpture and other castings.

脱蜡 法: 制作金属雕塑和其它铸件用的模具的传统方法.

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The dewax rate is controlled by the diffusion of paraffin wax in poly propylene.

热脱蜡的动力学控制步骤为石蜡在聚丙烯中的扩散过程.

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The research is made on dewaxing shellac by centrifugal subside and refining shellac - wax by tetrachloride extraction.

介绍了用离心沉降对紫胶脱蜡和四氯化碳萃取精制紫胶蜡的研究过程和结果.

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Technical progress of domestic and foreign acetone - benzol dewaxing units were introduced in detail.

详细介绍了国内酮苯脱蜡装置技术进展情况.

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The hydrocracked tail oil from hydrocracked in Refining Gaoqiao Branch was tested with ketone - benzol dewaxing technology.

加氢裂化尾油经酮苯脱蜡和白土精制工艺可生产高质量润滑油基础油.

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