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<h1><span>冲压弯头成型Ҏ</span></h1></div>
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<span class="date">发布旉: 2021-08-30 09:09:57</span>
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<p> 冲压弯头成型Ҏ。冲压弯头是最早应用于扚wZ无缝弯头的成形工艺，在常用标准的弯头Z中已被热推法或其它成形工艺所代替Q但在某些标准的弯头中因Z数量、壁厚过厚或q薄。品有Ҏ要求时仍在运用。弯头的冲压成Ş选用与弯头外径持q的坯Q运用压力机在模具中直接限制成Ş。在冲压前，坯摆放鄙h模上Q将内芯及端模装入管坯，上模向下q动开端限Ӟl过外模的束~和内模的支撑效果弯头成Ş?/p>
<p> 冲压弯头分冷冲压和热冲压两种Q一般依?资料性质和设备才能挑选冷冲压或热冲压。冷挤压弯头的成形进E是q用专用的弯头成形机Q将坯攑օ外模中，上下模合模后Q在推杆的推动下Q管坯沿内模和外模预留的I隙q动而完l成形进E。选用表里模冷挤压I艺制作的弯头外Ş漂亮、壁厚均匀、尺度误差小Q故关于不锈钢夸头特别是薄壁的不锈钢弯头成Ş多选用q一工艺制作。这U工艺所q用的表里模_ֺ要求?对管坯的壁厚误差要求也比较严苛?/p>
<p> 弯头的冲压成型进E?</p>
<p> 冲压弯头的耐压功能很好。但׃各方面的要素Q地杉K暖管的的实践壁厚一般ؓ而在q?个壁厚下各类材均能满意地板采暖的要求，国标冲压弯头耐压优势体现不出?导热?用于地板采暖的管材需求有好的导热性、低温耐热冲击性的耐低温冲d能比较好。不需坯作质料，可节省制设备及模具费用Q且可得CQ意大直径而壁厚相对较薄的弯头?/p>
<p> 与热推工艺比较，冲压成Ş的外观质量不如前?冲压弯头在成形时外弧处于拉状况Q没有其它部位剩余的金属q行补偿Q所以外弧处的壁厚约减薄10%左右。但׃适用于单件出产和低成本的特色Q故冲压弯头I艺多用于批量、厚壁弯头的制作?/p>
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