发布时间:2002-12-01
实施时间:2002-12-01
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[GB/T 13914-2002] 冲压件尺寸公差[已作废]
发布时间:2002-09-11
实施时间:2003-04-01
本标准规定了金属冲压件尺寸公差等级、符号、代号、公差数值及极限偏差。本标准适用于金属板材平冲压件和成..
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[GB/T 13915-2002] 冲压件角度公差[已作废]
发布时间:2002-09-11
实施时间:2003-04-01
本标准规定了金属冲压件角度的公差等级符号、代号、公差数值及极限偏差。本标准适用于金属板材冲裁与弯曲的..
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[GB/T 13916-2002] 冲压件形状和位置未注公差[已作废]
发布时间:2002-09-11
实施时间:2003-04-01
本标准规定了金属冲压件的直线度、平面度、同轴度、对称度、圆度、圆柱度、平行度、垂直度、倾斜度的未注公..
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[JB/Z 271-1986] 冲裁间隙[已作废]
发布时间:2001-10-01
实施时间:2001-10-01
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[JB/Z 272-1986] 精密冲裁件结构工艺性[已作废]
发布时间:2001-10-01
实施时间:2001-10-01
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发布时间:2001-10-01
实施时间:2001-10-01
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[JB/Z 281-1987] 冷镦件材料消耗工艺定额编制方法[已作废]
发布时间:2001-10-01
实施时间:2001-10-01
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发布时间:2001-10-01
实施时间:2001-10-01
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发布时间:2001-10-01
实施时间:2001-10-01
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[JB 4380-1987] 金属冲压件通用技术条件[已作废]
发布时间:2001-10-01
实施时间:2001-10-01
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[JB 4384-1987] 径向锻机上钢质轴类锻件 公差及机械加工余量[已作废]
发布时间:2001-10-01
实施时间:2001-10-01
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[JB/T 10265-2001] 水轮发电机用上下圆盘锻件 技术条件[已作废]
发布时间:2001-06-04
实施时间:2001-10-01
JB/T 10265—2001 本标准规定了水轮发电机上下圆盘用锻件的技术条件,试验方法,检验..
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[JB/T 5109-2001] 金属板料压弯工艺设计规范[现行]
发布时间:2001-06-04
实施时间:2001-10-01
本标准规定了金属板料压弯工艺设计所需的工艺参数和规范。
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[JB/T 6054-2001] 冷挤压件 工艺编制原则[现行]
发布时间:2001-06-04
实施时间:2001-10-01
JB/T 6054—2001 本标准是对JB/T 6054—1992《冷挤压件 工艺编制原则..
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[JB/T 7032-2001] 大型全纤维曲轴锻件[已作废]
发布时间:2001-06-04
实施时间:2001-10-01
JB/T 7032-2000 本标准是对JB/T 7032-1993《大型全纤维曲轴锻件》的修..
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[JB/T 50196-2000] 3MW~600MW发电机无磁性护环合金钢锻件 产品质量分等[已作废]
发布时间:2000-08-31
实施时间:2000-12-01
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[JB/T 50197-2000] 6MW~600MW汽轮机转子和主轴锻件 产品质量分等[已作废]
发布时间:2000-08-31
实施时间:2000-12-01
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[JB/T 53485-2000] 50MW以下发电机转子锻件 产品质量分等[已作废]
发布时间:2000-08-31
实施时间:2000-12-01
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[JB/T 53495-2000] 特大型轴承钢锻件 产品质量分等[已作废]
发布时间:2000-08-31
实施时间:2000-12-01
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