JBT 6395-1992大型齿轮、齿圈锻件.pdf

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1、J32JB/T6395－1992大型齿轮、齿圈锻件1992-07-14发布1993-07-01实施中华人民共和国机械电子工业部发布中华人民共和国机械行业标准JB/T6395－1992大型齿轮、齿圈锻件1主题内容与适用范围本标准规定了大型齿轮、齿圈锻件的订货，制造和验收技术要求。本标准适用于大型齿轮、齿圈锻件。2引用标准GB223钢铁及合金化学分析方法GB228金属拉伸试验方法GB229金属夏比（U型缺口）冲击试验方法GB230金属洛氏硬度试验方法GB231金属布氏硬度试验方法GB2106金属夏比（V型缺口）冲击

2、试验方法JB/ZQ4000.7锻件通用技术要求JB/T6397大型碳素结构钢锻件3订货要求3.1需方应在订货合同中规定锻件的名称、钢种（见表1）、供货数量和交货状态。表1化学成分%钢号CSiMnP≤S≤CrNiMoTi0.420.170.5045~~~0.0350.035————0.500.370.800.370.170.500.8040Cr~~~0.0350.035~———0.440.370.801.100.320.170.400.800.1535CrMo~~~0.0350.035~—~—0.400.370.

3、701.100.250.380.170.500.900.1542CrMo~~~0.0350.035~—~—0.450.370.801.200.300.300.170.401.401.400.1534Cr2Ni2Mo~~~0.0350.035~~~—0.380.370.701.701.700.300.300.170.500.702.750.2534CrNi3Mo~~~0.0350.035~~~—0.400.370.801.103.250.40机械电子工业部1992-07-14批准1993-07-01实施1JB/T

4、6395－1992续表1%钢号CSiMnP≤S≤CrNiMoTi0.330.601.600.40V,0.0537SiMn2MoV~~~0.0350.035——~~0.390.901.900.500.120.100.170.300.602.7512CrNi3~~~0.0350.035~~——0.170.370.600.903.150.370.170.900.900.2040CrMnMo~~~0.0350.035~—~—0.450.371.201.200.300.140.171.000.8016MnCr~~~0.0

5、350.035~———0.190.371.301.100.170.170.801.100.0420CrMnTi~~~0.0350.035~——~0.230.371.101.300.100.170.170.901.100.2020CrMnMo~~~0.0350.035~—~—0.230.371.201.400.300.130.170.801.402.800.4015Cr2Ni3Mo~~~0.0350.030~~~—0.200.371.201.803.200.600.140.170.401.501.400.2517

6、Cr2Ni2Mo~~~0.0350.035~~~—0.190.350.601.801.700.350.170.170.400.401.600.1520CrNi2Mo~~~0.0300.030~~~—0.230.350.700.652.000.30注：在保证工艺性能和力学性能的前提下，Cr、Ni、Cu残余元素含量不作为验收依据。3.2需方应提供订货图样和相关的精加工图样。3.3当需方提出特殊要求时应经供需双方共同商定。4制造4.1锻件应由镇静钢钢锭制造。4.2每个钢锭的冒口和水口应有足够的切除量，以保证锻件内部无

7、缩孔和严重的偏析。4.3锻件应在足够吨位的锻造设备上锻造成形，以保证锻件内部充分锻透。4.4锻件应按订货合同确定的交货状态进行热处理。5技术要求5.1化学成分5.1.1钢的化学成分应符合表1的规定。5.1.2钢的成品分析偏差范围，应符合表2的规定。2JB/T6395－1992表2成品分析时化学成分允许偏差2截面面积cm元＞650＞1300＞2600＞5200成分范围≤650~~~~＞10300素13002600520010300允许成分上、下限的偏差%＞0.10~0.250.020.030.030.040.05

8、0.05C＞0.25~0.550.030.040.040.050.060.06≤0.350.020.030.040.040.050.06Si＞0.350.050.060.060.070.070.08≤900.030.040.050.060.070.08Mn＞900.060.060.070.080.080.09P≤0.0500.0080.0080.0100.0100.0150.015≤0