金属缠绕垫片的种类及标准

金属缠绕垫片的种类：（一）基本型金属缠绕垫、（二）带外环金属缠绕垫（三）带内环金属缠绕垫（四）带内外环金属缠绕垫（五）换热器用（带筋）（六）异形金属缠绕垫金属缠绕垫片（基本型）采用优质SUS304、SUS316（“V”形或“ W”形 ) 金属带及其它合金材料与石墨、石棉、聚四氟乙烯 、无石棉等软性材料相互重叠螺旋缠绕而成，在开始及末端用点焊方式将金属带固定。1. 金属带材料A. 采用厚度为0.15mm~0.25mm的 08F，0Cr13, 0Cr18Ni19Ti, 0Cr18Ni9Ti, 00Cr18Ni10, 0Cr18Ni12Mo2Ti, 00Cr17Ni14Mo2,201,304,316等冷轧钢带，或由供需双方协商确定。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C.不锈钢的硬度值HV≤200 D.一般的钢带的宽度是3.2mm,4.5mm,8mm,W型的钢带可以更厚。2. 非金属带材料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，陶瓷纤维及云母带等。带的厚度为 0.3-1.0mm 。B. 特制石棉烧失量必须≤ 25% C. 非金属带的氯离子含量≤ 100PPM D.各类介质及各种非金属带的推荐使用温度及压力E. 一般的钢带的宽度是3.2mm,4.5mm,8mm 3. 内外环材料常用的有304SS,316LSS,321SS,347SS, 碳钢 , 钛 , 铜 . mix: The flange on the pad designs to facilitate the installation of the Company under the gasket-caliber size, the gasket external welding a 2 ~ 8 positioning belt buckle for positioning hole in the flange, to prevent displacement installation gasket or falling out of the supporting material and saving hours of work. Types and gasket materials 1, Winding pads divided into four forms: that is, as the basic type A, B band strengthen ring, the C-band to strengthen the ring, the D-band, the strengthening ring. 2, the general use of materials A strip: 0 Cr13, 0Cr18Ni9 (304), 0Cr18Ni9Ti, 1Cr18Ni9Ti (321), 0Cr17Ni12Mo2 (316), 00Cr17Ni14Mo2 (316L) B, both inside and outside ring materials are A3, 304,316,316 L C, non-metallic sandwich belt: Flexible Graphite PTFE, custom-made asbestos. 使用范围： Use of: ...