PEM压铆件手册

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1、小五金PEM压铆件手册1、螺钉、螺栓1.1、通孔孔径螺钉连接零件上预制之通孔如图示。通孔孔径之尺寸如下表(单位:mm)螺钉公称直径通孔直径(d)mm一级二级三级四级11.11.21.31.21.31.41.51.41.51.61.81.61.71.821.71.822.11.82.02.12.222.22.42.62.22.42.62.82.32.52.72.92.52.72.93.12.62.833.233.23.43.63.53.73.94.244.34.54.85.54.54.855.3655.35.55.86.566.46.

2、677.81.2、攻螺纹孔孔径与螺钉相配的螺纹攻丝孔孔径取决外内螺纹结合比之大小.螺纹结合比(%)=[(螺钉公称直径-攻丝孔直径)÷(2*螺纹结合高度)]*100%1.3、配合尺寸同种规格的螺钉需与同种规格螺纹的螺母或与预攻同规格螺纹孔和,钢板配合,如对M3的螺钉需与M3的螺母配合,或者与在钢板上攻出M3的螺纹孔相配合.1.4、机械性能(包括材质与热处理)一般用C<0.20%的低碳钢制造,拉伸强度要求不小于330Mpa,硬度不小于95HV(90HB或52HRB),屈服强度不小于190Mpa,延伸率不小于25%,部分螺钉拉力如下表螺纹

3、标志M1.6M2M2.2M2.5M3M3.5M4M5M6最小拉力4206206801120166022402900469066301.5．钢板厚度(取决于螺钉与内螺纹的结合长度,钢板厚度要大于实际螺纹要求的旋合长度,单位mm)旋合长度螺纹标志>≦M10.61.7M1.10.61.7M1.20.61.7M1.40.72M1.60.82.6M1.80.82.6M21.03M2.21.33.8M2.51.33.8M31.54.5M3.51.75M426M4.52.26.7M52.27.5M639M1*0.20.51.4M1.1*0.20.

4、51.4M1.2*0.20.51.4M1.4*0.20.51.4M1.6*0.20.51.5M1.8*0.20.51.5M2*0.250.61.9M2.2*0.250.61.9M2.5*0.350.82.6M3*0.3513M3.5*0.3513M4*0.51.54.5M4.5*0.51.54.5M5*0.51.54.5M5.5*0.51.54.5M6*0.752.47.1注:对薄材,钢板厚度至少要大于2-3个螺距。1.6、压铆螺钉⑴、压铆螺钉FH，FHS，FHA用于0.76毫米以上薄板。FH-M3-8型号安装安装H螺纹×螺不长度码

5、最小后最S最小碳孔±距锈铝L±0.4板厚大接(Max)边距钢+0.080.4钢触孔M2.5*0.45FHFHSFHA6810121518NANANANA12.53.104.11.955.4M3*0.5FHFHSFHA68101215182025NANA133.604.62.15.6M3.5*0.6FHFHSFHA6810121518202530NA13.54.105.32.256.4M4*0.7FHFHSFHA681012151820253035144.605.92.47.2M5*0.8FHFHSFHANA8101215182025

6、3035155.606.52.77.2M6*1FHFHSFHANANA10121518202530351.6066.608.237.90M8*1.25FHFHSFHANANANA121518202530352.488.609.63.79.6⑵、压铆螺钉TFH，TFHS可用于最上板厚为对拉穿力要求高，而扭矩要求小时可代替FH。型号安装最安装H螺纹×长度码最小后最ST小碳不锈孔±螺距L±0.4板厚大接(Max)(Max)边钢钢+0.080.4触孔距M3*0.5TFHTFHS68101215182025NANA0.5133.604.51.

7、80.645.6M4*0.7TFHTFHSNA810121518202530350.5144.605.81.80.647.2M5*0.8TFHTFHSNA810121518202530350.5155.606.42.30.647.2⑶、压铆螺钉HFH,HFHS,HFHB提供大的头部，增加受力强度HFHB用于设备导电接地线路和连接。型号最安装安装H螺纹×长度码小后最ST最小碳不锈孔±螺距铜L±0.4板大接(Max)(Max)边距钢钢+0.080.4厚触孔M5*0.8HFHHFHSHFHB152025303540501.356.57.8

8、2.71.1410.7M6*1HFHHFHSHFHB152025303540501.567.59.42.81.2711.5M8*1.25HFHHFHSHFHB15202530354050299.512.53.51.7812.7M10*