| 不锈钢铸造需要注意什么 |
| 添加时间：2019/5/27 14:25:58 浏览次数： |
| 1.为防止不锈钢铸造时产生白口，除从工艺上采取措施外，必须使其壁厚不能过薄（有些资料指出，壁厚在15mm以上时，用金属型铸造铸件的转角处都必须采用圆角。 1. In order to prevent whiteness in stainless steel casting, besides technological measures, it is necessary to make the wall thickness not too thin (some data point out that when the wall thickness is more than 15 mm, rounded corners must be used at the corner of the casting with metal mould. 2.由于金属型和芯无让性，为便于取出铸件和抽出型，不锈钢铸造铸件的铸造斜度应比砂型铸造件的适当大一些，一般应大30%-50%。 2. Because of the non-yielding nature of the metal and core, in order to facilitate the removal of castings and withdrawal moulds, the casting inclination of stainless steel castings should be larger than that of sand castings, which should generally be 30%-50%. 3.不锈钢铸造铸件内壁和内肋的厚度一般应取相连外壁厚度的0.6-0.7，否则由于内壁（肋）冷得慢，在铸件收缩时易在内外壁交接处产生裂纹。 3. The thickness of inner wall and inner rib of stainless steel castings should generally be 0.6-0.7 of the zhuguangzhi.37ix.com.cnjinyinzhi.37ix.com.cnsekazhi.37ix.com.cn tongfengg.37ix.com.cnshusongdaih.07858.netshusongdaif.07858.netthickness of the connecting outer wall. Otherwise, because the inner wall (rib) is cooled slowly, cracks are likely to occur at the junction of inner and outer wall when the castings shrink. 4.由于金属型散热快，因此不锈钢铸造的最小壁厚应比砂型铸造铸件的要大一些，各种铸造合金、不同大小的铸造最小壁厚。 4. The minimum wall thickness of stainless steel casting should be larger than that of sand casting because of the fast heat dissipation of metal mould, and the minimum wall thickness of various casting alloys and different sizes of casting. |
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