Abstract : based on analyzing of technology and construction feature of inlet pipe casting for lost process cad / cam system of die program is setup through improvement and second development of the imported system 文摘:以進(jìn)氣管為例,通過(guò)對(duì)引進(jìn)系統(tǒng)的改進(jìn)和二次開發(fā),在對(duì)鑄件工藝和結(jié)構(gòu)特征分析的基礎(chǔ)上,建立了消失模模具cad / cam系統(tǒng)。
The inner lining of such materials as br , nr , cr , fer , rpp , pvd , ptfe and f46 in the valve body of all kinds of cast iron and carbon steel or in the inwall of pipe castings can not only adapt to corrosion medium under different working conditions , but also can replace a great many rare and precious metal , which has , under the normal working conditions of valve , saved a large amount of funds for the users 通過(guò)在各類鑄鐵、碳鋼的閥體或管件內(nèi)壁上進(jìn)行內(nèi)襯br / nr / cr / fer / rpp / pvd / ptfe / f46等材料,不但可以適用于不同工況下的腐蝕性介質(zhì),而且可以替代許多稀有貴重金屬,為用戶在保證閥門正常使用的條件下節(jié)約大量的資金。