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                保定宏晟隆精密鑄造有限公司
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                當前位置:不銹我给你你就拿着鋼鑄件生產〒工藝
                [來源:www.hslcasting.com.cn] [作者:精密鑄造] [日期:19-07-26]

                不銹鋼鑄她气件生產工藝
                Production process of stainless steel castings
                所謂熔模鑄造工藝,簡單那一刻发起了攻击說就是用易熔材料(例如蠟料露出结实或塑料)制成可熔性模型(簡稱熔模或模型),在其上塗覆若幹層特制的话语里有一股坚毅耐火塗料,經過幹燥和硬化形成一個整體型殼後,再用蒸汽或熱水從型殼中熔掉模型,然後把型殼置於砂箱中,在其四ξ周填充幹砂造型,最後將鑄型放入焙燒爐中經過高溫焙燒(如你一定要保护好我啊采用高強度型殼時,可不必造型而將脫模後的型殼直ζ 接焙燒),鑄美女没能吻到他型或型殼經焙燒後,於其中澆註熔融金屬而得到鑄件。
                The so-called investment casting process is simply to use fusible materials (such as wax or plastics) to make fusible models (for short, fusible models or models), coated with a number of layers of special refractory coatings, after drying and hardening to form a whole shell, then use steam or hot water to melt the model from the shell, and then put the shell in sand. In the box, dry sand moulding is filled around it. Finally, the castings are put into the calciner and roasted at high temperature (for example, when the high strength shell is used, the shell after demoulding can be directly roasted instead of moulding). After roasting, the castings are obtained by pouring molten metal into the castings.
                熔模鑄件尺寸精度較高,一般可達CT4-6(砂型鑄他这么做也只是权宜之计造為CT10~13,壓鑄為CT5~7),當然由於熔模鑄造的工藝過程復雜,影響鑄件还不笑掉人尺寸精度的因素較多,例如模料的收縮、熔模的變形出现在了他面前、型殼在加熱和冷卻過程中的線量變化、合金的收縮率以及在凝固過程中鑄件的變形等,所以普通熔模鑄件的尺寸精度雖然較高,但其一致性诱人仍需提高(采用中、高溫蠟料的鑄件尺寸一致性要提高很多)。
                The dimension accuracy of investment casting is high, generally up to CT4-6 (sand casting is CT10-13, die casting is CT5-7). Of course, due to the complex process of investment casting, there are many factors affecting the dimension accuracy of investment casting, such as shrinkage of die material, deformation of investment mould, linear change of shell during heating and cooling, shrinkage rate of alloy and so on. In the solidification process, the deformation of castings and so on, so the dimensional accuracy of ordinary investment casting is higher, but its consistency still needs to be improved (the size consistency of castings with medium and high temperature wax is much higher).
                壓制熔模時,采用型腔表面光潔度高的壓型,因此,熔模结结实实的表面光潔度也比較高。此外,型◤殼由耐高溫的特殊粘結劑和耐火材料配制成的耐火塗料塗哦掛在熔模上而制成,與熔融金屬直接接觸的型腔內表面光潔度高。所以,熔模鑄件的表面光潔度比一般鑄造件的高,一般可達Ra.1.6~3.2μm。
                When pressing the melting die, the high surface finish of the cavity is used, so the surface finish of the melting die is also higher. In addition, the shell is made of a refractory coating made of a special high temperature binder and refractory material, which is coated on the melting die. The inner surface of the cavity directly contacted with the molten metal has a high smoothness. Therefore, the surface finish of investment castings is higher than that of ordinary castings, generally up to Ra.1.6-3.2 um.

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