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                當前位置:熔模鑄件
                [來源:www.hslcasting.com.cn] [作者:精密鑄造] [日期:19-09-03]

                熔模鑄件〓尺寸精度較高,一般可達CT4-6(砂但一定要将留给他自己型鑄造為CT10~13,壓鑄為CT5~7),當然由於熔模鑄造的工藝過程復雜,影響鑄件尺寸精度的因素較▲多,例如模料的●收縮、熔模〒的變形、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》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成功学生制成的耐火塗料塗掛在熔模上而制成,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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