金属缠绕垫片的选用,A、B、C、D型和R、RIR、CG、CGI型都是什么类型？
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="https://mmbiz.qpic.cn/mmbiz/4suMzzZXY9cHqnDMSjCCd8ic1RkraVRpWiblftgS9uX2yE5icV2yhj3OdytCLhPF1Ltp6iaicw2oycmceKTKwlN0ic2Q/640?wx_fmt=gif&tp=webp&wxfrom=5&wx_lazy=1" style="width: 100%; margin-bottom: 20px;"></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">通常采用优质SUS304、SUS316（“V”形或“W”形)等不锈钢缠绕带与石墨、石棉、聚四氟乙烯、无石棉等软性材料相互交替重迭螺旋缠绕而成，在开始及末端用点焊方式将金属带固定，基本型金属缠绕垫片不带内外环 一般用在中低压的榫槽面和平面或凹凸面的法兰中</p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;">性能特点：</strong></span></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">缠绕式垫片压缩性能，回弹性能良好，具有多道密封和一定的自紧功能，对于法兰压紧面的表面缺陷不太敏感，不粘结法兰密封表面，可部分消除压力.温度变化和机械振动的影响；能在高温.低温.高真空.冲击振动等循环交变的各种苛刻条件下，保持其优良的密封性能。</p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><span style="color: green;"><strong style="color: blue;">使用设备:</strong></span>石油、化工、冶金、电力、船舶、燃气、核能、航天、纺织、医药、机械等行业的管道、阀门、压力容器、冷凝器、换热器、塔、人孔、手孔等法兰连接处静密封部位 。</span></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;">缠绕垫片结构形式及代号和使用法兰类别：</strong></span></p><span style="color: green;"><strong style="color: blue;">基本型式 </strong></span><span style="color: green;"><strong style="color: blue;">代号</strong></span><span style="color: green;"><strong style="color: blue;">适用的法兰密封面</strong></span><span style="color: green;"><strong style="color: blue;">厚度(mm)</strong></span><span style="color: green;"><strong style="color: blue;">V型基本体/环</strong></span><span style="color: green;"><strong style="color: blue;">W型基本体/环</strong></span><span style="color: green;">基本型</span><span style="color: green;">A或R型</span><span style="color: green;">榫槽面、凹凸面、平面和凹槽面</span><span style="color: green;">3.2;4.5</span><span style="color: green;">4.8;5.5;7.5</span><span style="color: green;">带内环型</span><span style="color: green;">B或RIR型</span><span style="color: green;">榫槽面、凹凸面、平面和凹槽面</span><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">3.2/2</p>4.5/3
</span><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">4.8/3.0</p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">5.5/4.0</p>7.5/5.0
</span><span style="color: green;">带定位环型</span><span style="color: green;">C或CG型</span><span style="color: green;">平面或凸面</span><span style="color: green;">带内环及定位环型</span><span style="color: green;">D或CGI型</span><span style="color: green;">平面或凸面</span>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">基本型:</span></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/AiaLXTia1kk9hzCjH3qTxibl1JwicRCCSTaxQLDNDQ93JBZ18pnAZ0bfibnfeoywticWs9k1nGjVSyOPn7Dd12Ae7HGA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 100%; margin-bottom: 20px;"></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">带内环型：</span></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/AiaLXTia1kk9hzCjH3qTxibl1JwicRCCSTaxQib9m3GHLWx8BoVFf0zhwhlgibtfkpveg8f2HAFzRRZzzdJjxh1qJXRA/640?wx_fmt=png&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 100%; margin-bottom: 20px;"></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">带定位环型:</span></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/AiaLXTia1kk9hzCjH3qTxibl1JwicRCCSTaxlUR86AI2hPbjZSwZZpllliahntkmicMYBlaMthkR4uEHEic5D1ludOiaqA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 100%; margin-bottom: 20px;"></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;">带内环及定位环型：</span></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/AiaLXTia1kk9hzCjH3qTxibl1JwicRCCSTaxvuiaicljiaCXQso0S3y84VQgyWyF9S4VlrnvdOFyZTw31hKxKJdia32Ybg/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 100%; margin-bottom: 20px;"></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><span style="color: green;"><strong style="color: blue;">材料:</strong></span><span style="color: green;">1.基本型缠绕金属带</span><span style="color: green;">A. 采用厚度为0.15mm~0.25mm的, sus304,sus316L,sus321等冷轧钢带，或由供需双方协商 确定。</span><span style="color: green;">B. 金属带为预成型的V型或W型窄带，表面应光滑.洁净，不应有粗糙不平.裂纹.划伤.凹坑及锈斑等缺陷</span><span style="color: green;">C.不锈钢的硬度值 HV≤200</span></span></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">2. 基本型缠绕非金属带 </p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">A 非金属填充为特制的石棉带，柔性石墨带，聚四氟乙烯带，非石棉纤维带，及云母带等。带的厚度为 0.3-1.0mm。</p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">B. 特制石棉烧失量必须≤25%</p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">C. 非金属带的氯离子含量≤100PPM</p>D.各类介质及各种非金属带的推荐使用温度及压力如下表：
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;">缠绕垫片各种非金属材料主要技术参数：</strong></span></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><img src="https://mmbiz.qpic.cn/mmbiz_png/HNDn8urPLxTEfj88PejUcbooRED1USg7QCzm0RYVe1hs7qxwXKKrcpVwNHYkiauAtKwWV1sdTT1ao3goE71fTfA/640?wx_fmt=jpeg&tp=webp&wxfrom=5&wx_lazy=1&wx_co=1" style="width: 100%; margin-bottom: 20px;"></p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;">下表用于对内环及缠绕金属带的材质选择：</strong></span></p><span style="color: green;"><strong style="color: blue;">材料名称</strong></span><span style="color: green;"><strong style="color: blue;">缩写标记</strong></span><span style="color: green;"><strong style="color: blue;">硬度(HB)</strong></span><span style="color: green;"><strong style="color: blue;">温度(°C)</strong></span><span style="color: green;">SUS 304</span><span style="color: green;">304</span><span style="color: green;">130~180</span><span style="color: green;">-195~+550</span><span style="color: green;">SUS 316L</span><span style="color: green;">316L</span><span style="color: green;">130~180</span><span style="color: green;">-100~+550</span><span style="color: green;">SUS 321</span><span style="color: green;">321</span><span style="color: green;">130~190</span><span style="color: green;">-195~+760</span><span style="color: green;">HASTELLOR-B2</span><span style="color: green;">HASTB</span><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">215</p>
</span><span style="color: green;">-185~+1090</span><span style="color: green;">INCONEL-600</span><span style="color: green;">INC600</span><span style="color: green;">150</span><span style="color: green;">-100~+1090</span><span style="color: green;">MONEL-400</span><span style="color: green;">MON</span><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">150</p>
</span><span style="color: green;">-130~+820</span><span style="color: green;">钛</span><span style="color: green;">T2</span><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">215</p>
</span><span style="color: green;">-195~+1090</span>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><span style="color: green;"><strong style="color: blue;">金属缠绕垫片基本体厚度公差：</strong></span></span></p><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">项目</p>
</span><span style="color: green;">厚度(mm)</span><span style="color: green;">公差(mm)</span><span style="color: green;">垫片厚度</span><span style="color: green;">4.5, 3.2</span><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">+0.2</p>-0.1
</span><span style="color: green;">环厚度</span><span style="color: green;">3.0</span><span style="color: green;">±0.25</span>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;">下表是缠绕垫片直径公差（即用于法兰的名义管道直径）：</strong></span></p><span style="color: green;"><strong style="color: blue;">DIN (mm)</strong></span><span style="color: green;"><strong style="color: blue;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">ANSI B16.5 </p>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">BS1560 (mm)</p>Mss sp-44
</strong></span><span style="color: green;"><strong style="color: blue;">API 605</strong></span><span style="color: green;"><strong style="color: blue;">公差</strong></span><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">内环内径</p>垫片内径
</span><span style="color: green;"><=600</span><span style="color: green;"><=24"</span><span style="color: green;">>=26" and <=34"</span><span style="color: green;">±0.5</span><span style="color: green;">>600 and <=800</span><span style="color: green;">>24" and <=34"</span><span style="color: green;">>=36" and <=60"</span><span style="color: green;">±0.9</span><span style="color: green;">>800 and <=1600</span><span style="color: green;">>34" and <=60"</span><span style="color: green;">±1.3</span><span style="color: green;">>1600</span><span style="color: green;">>60"</span><span style="color: green;">±1.6</span><span style="color: green;">垫片外径</span><span style="color: green;"><=600</span><span style="color: green;"><=24"</span><span style="color: green;"><=24"</span><span style="color: green;">±0.9</span><span style="color: green;">>600 and <=16000</span><span style="color: green;">>24" and <=60"</span><span style="color: green;">>24" and <=60"</span><span style="color: green;">±1.8</span><span style="color: green;">1600</span><span style="color: green;">>60"</span><span style="color: green;">±2.2</span><span style="color: green;">外环外径</span><span style="color: green;">>=1/2" and <=60"</span><span style="color: green;">±0.9</span><span style="color: green;"><=600</span><span style="color: green;"><=24"</span><span style="color: green;">0-1.0</span><span style="color: green;">>600 and <=1000</span><span style="color: green;">>24" and <=34"</span><span style="color: green;">0-1.8</span><span style="color: green;">>1000 and <=1600"</span><span style="color: green;">>34" and <=60</span><span style="color: green;">0-2.2</span>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><strong style="color: blue;">金属石墨缠绕垫片主要性能参数： </strong></span></p><span style="color: green;">
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;">缠绕垫片系数 </p>
</span><span style="color: green;">m=2.5-4</span><span style="color: green;">缠绕垫片使用压力</span><span style="color: green;">≤25MPa</span><span style="color: green;">缠绕垫片使用温度</span><span style="color: green;">-196℃-700℃(氧化性介质中不高于600℃)</span><span style="color: green;">缠绕垫片最小预紧比压</span><span style="color: green;">y=68MPa</span>
<p style="font-size: 18px; line-height: 40px; text-align: left; margin-bottom: 30px;"><span style="color: green;"><span style="color: green;"><strong style="color: blue;">技术标准:</strong></span><span style="color: green;">1. 金属缠绕垫片的国外制造标准有:ASME B 16.20, ASME B 16.5, ASME B 16.47 A (B), BS EN1092, JIS, 和 NF 等</span><span style="color: green;">2 .国内标准有</span><span style="color: green;">HG/T20610-2009 钢制管法兰用缠绕式垫片 化工部欧洲体系 </span><span style="color: green;">HG/T20631-2009 钢制管法兰用缠绕式垫片 化工部美洲体系 </span><span style="color: green;">GB/T4622.2-97 缠绕式垫片 管法兰用垫片尺寸 国家标准 </span><span style="color: green;">JB/T4719-92 管壳式换热器用缠绕垫片 机械部标准 </span><span style="color: green;">JB/T90-2015 管路法兰用缠绕式垫片 机械部标准 </span><span style="color: green;">JB/T4705-2000 压力容器法兰用缠绕式垫片 </span></span></p>
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