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本公司定期更新不锈钢产品价格
因不锈钢市场价格变动较大 价格以当日为准 购买前请咨询
网上报价为含税 不含运费价格
量大价格可以再商议
洽谈合作,签订工贸销售合同
本产品采购属于商业贸易行为,不适用“七天无理由退货”(交易双方另有约定的除外)
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不锈钢弯头重量理算表
![undefined](http://i03.c.aliimg.com/img/ibank/2014/788/766/1715667887_1999017517.jpg?__r__=1411796148819)
![559446](http://i05.c.aliimg.com/img/ibank/2014/936/565/1611565639_1999017517.jpg)
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![975701](http://i03.c.aliimg.com/img/ibank/2014/046/565/1611565640_1999017517.jpg)
大小头(异径管)是用于管道口径的一种管件。通常采用的成形工艺为缩径压制、扩径压制或缩径加扩径压制,对某些规格的异径管也可采用冲压成形。
缩径/扩径成形
大小头的缩径成形工艺是将与大小头大端直径相等的管坯放入成形模中,通过沿管坯轴向方向的压制,使金属沿模腔运动并收缩成形。根据异径管变径的大小,分为一次压制成形或多次压制成形。
冲压成形
除使用钢管为原料生产大小头外,对部分规格的大小头还可用钢板采用冲压成形工艺进行生产。拉伸所使用的冲模形状参照大小头内表面尺寸设计,用冲模将下料后的钢板冲压拉伸成形。
大小头粘接前,应用干布将承口侧和插口外侧擦拭处理,当表面粘有油污时须用丙酮擦拭干净,有以下几点要注意:
1、控制口径:DIN标准(DN10-DN150)、3A/IDF标准(1/2"-6")、ISO标准(Ф12.7-Ф152.4);
2、国际工业标准:DIN、ISO、SMS、3A、IDF等;
3、产品材料:不锈钢304、316、316L;
4、质量与用途:大小头内外用高档抛光设备处理,达到表面精密度要求;此产品适用于 乳品、食品、啤酒、饮料、制药、化妆品等工业领域;
5、对外加工:可以按用户要求来图、来样加工非标产品;
6、连接方式:卡箍(快装)式、焊接式、螺纹(活接)式。
注意大小头也适合于环保除尘行业中的管道变径,一般都是钢板卷制切割焊接而成,管径大小不一,材料
一般都是热轧卷板,应用的非常好,可以节约成本。
江苏耐特不锈钢有限公司风采
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