DZ 1 3-1984 《硬质合金、钢粒岩芯钻探管材螺纹》.pdf

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1、中华人民共和国地质矿产部部标准DZ 1.11.3一84地质岩芯钻探管材螺纹1984一12一17发布1985一05一01实施中华人民共和国地质矿产部批准中华人民共和国地质矿产部部标准1.8-84硬质合金、钢粒岩芯钻探管材螺纹:14-6216-62z替D代本标准适用于YB 235-70地质钻探用钢管中目前仍在延续使用的部分规格岩芯管、套管螺纹的加工。而不适用于GB 3423-82金刚石岩芯钻探用无缝钢管中各种管材的螺纹加工。钻杆锁接头螺纹按pZ 25-83地质钻探钻杆锁接头规定执行。1岩芯管、套管螺纹基本牙型按照DZ 1.1-84金刚石岩芯钻探管材螺纹中图1和表1所列的岩芯管外管、钻头、扩孔器螺纹

2、基本牙型的规定执行。2岩芯管、套管螺纹的基本尺寸及偏差岩芯管、套管螺纹的基本尺寸及偏差,在同一规格的管材上是一致的,应符合下图及表1、表2的规定。表1nln1岩芯管、套管接头公称外径D公称内径d螺纹长L幢孔直径Do公称外径D公称内径d螺纹长1台肩径do岩芯管套管岩芯管套管34.527406034.523.5406027-33,37_0,44.53739.5吕44.533.550一名,52.5吕57.546.557.549.566-名,69.5昙73.562.573.565.5中华人民共和国地质矿产部1984-12 -17发布1985一05一of实施DZ 1。8-84续表1岩芯管、套管接头公称外

3、径D公称内径d螺纹长L键孔直径Do公称外径D公称内径d螺纹长1imad岩芯管套管岩芯管套管89.581406084.5吕89.578.5406082_吕,103.5名108.597.5108.599.5101-8,120-u.,122. 5*0127.5116.5127.5118139-8,141.5“146.5135.5146.5137表2nlm岩芯管套管及接头公称外径D外螺纹内螺纹大径d,小径d,牙顶宽m大径D,小径DZ牙顶宽爪134.529吕.,。27.5 _合。.。一1.922 _o. ,29+:.27.5昭oll.1.934 -0o., a39 .U”37.5怡。44.539一名.1

4、131.5 _名.。52十:050.5怡257.552_忿.:。50.5_且.,:73.568 _o.so“.5一盆.:68 昙066.5怡284+:”82.5铭礴89.584-o:,82.5-忿103+:2玉101.5咭月108.5103-,.,101.5_ o.。127.5122A二120.5- 0o.e122 盆120.5啥6141二139.5侣“146.5141_$.,.139.5-:.。13Dz 1.3-e4技术要求岩芯管、套管螺纹不完整螺纹长度不得超出图示要求,不允许用退刀槽代替不完整螺纹。螺纹应光滑,不允许有裂缝、损切、毛刺等缺陷。螺纹密封面与螺纹大径轴线垂直度误差不得大于O.lmm.月,灿附加说明:本标准由地质矿产部探矿工程装备工业公司提出。本标准由地质技术经济研究中心负责起草。本标准主要起草人肖亚民、李良淦。

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