铝合金砂型铸造

es the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.

铝合金砂型铸造Tag内容描述:

1、es the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification2covers aluminum-alloy sand castingsdesignated as shown in Table 1.1.2 This specification is not intended for aluminum-alloysand castings u。

2、es the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope*1.1 This specification2covers aluminum-alloy sand castingsdesignated as shown in Table 1.1.2 This specification is for aluminum-alloy sand castingsused in g。

3、HB 5446 铸造铝合金热处理HB 5480 高强度铝合金优质铸件HB 6103 铸件尺寸公差HB/Z 160 铸造铝合金熔炼3 工艺特点砂型铸造特别是手工造型,设备简单、投资少、准备周期短、生产简便。
铸件成本低廉,铸件结构改进、改型、工艺调整容易实现。
适宜各种形状、大小的铝合金铸件的试制和批量生产。
金属液在浇注过程中排气、浮渣和在砂型中的冷凝收缩时的条件,比其它铸造方法优越。
适宜铸造各种牌号和工艺特性的铝合金铸件。
砂型铸造的金属利用率、生产效率、劳动条件以及铸件的致密度、尺寸精度、表面粗糙度比金属型、低压铸造、压铸、精铸等差。
适宜铸造壁厚在3mm以上、精度等级在HB6103规定的CT7,.11级,表面粗糙度Ra注6.3町的铸件。
4 工艺程序铝合金砂型铸造的主要工艺程序如下z航去航天工业部1992-10-04发布1992一11-01实施模具准备5 主要工艺材料技术要求5. 1 技术要求HB/Z 220. 1-92 I造型|一|合箱|浇注1.|落砂li清理|热处理|枪验|除街特殊规定外,主要工艺材料及其技术要求见表105.2 主要工艺材料准备5.2.1 原砂准。

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