请问石油套管特殊扣型RL-4S是哪家工厂的产品?国内是否有厂家可以加工?

2025-03-31 11:30:58
推荐回答(3个)
回答1:

营{}}钢管 57
形(无金属密封)见图2。
螺纹参数
承载面角度
导向面角度
每英寸牙数
齿高
锥度
表面处理
3。
45。或30。
3牙
1.982 mm(API BC为
1.575 mm)
1:8.5
镀锌
(a)螺纹牙形
(b)密封形式
图1 TM 特殊扣的接头形式
图2 SE—EF特殊扣的螺纹牙形
(3)NK3SB特殊扣
NK3SB特殊扣由日本钢管公司(NKK)开发,
其牙形和密封形式见图3。
螺纹参数
承载面角度0。
导向面角度 45。
锥度 1:16
每英寸牙数 5牙
表面处理 接箍镀锌或镀铜
密封形式 球面对锥面线接触,90。密封台肩
此种特殊扣的设计比较先进。可承受较大的轴
向压缩和弯曲载荷。
张居勤:国外油井管特殊扣的主要类型及其特点

(a)螺纹牙形 (b)密封形式
图3 NK3SB特殊扣的接头形式
(4)NSCC特殊扣
NSCC特殊扣由日本新日铁公司开发,其牙形
和密封形式见图4。
螺纹参数(与API BC相同)
表面处理接箍镀锌或镀铜。
密封形式锥面对锥面,面接触,90。双内扭
矩台肩
此种特殊扣属于3级金属密封,适用于气井和
热采井的开发。

密封辅助台肩
(a)螺纹牙形
主台肩
(b)密封形式
图4 NSCC特殊扣的接头形式
(5)SEC特殊扣
SEC特殊扣由阿根廷世特佳公司开发。其牙形
和密封形式见图5。
螺纹参数(与API BC相同)
表面处理内、外螺纹磷化
密封形式锥面对锥面,面密封,SEC特殊扣
的接头形式套管 为反角15。内扭矩
台肩,油管 为反角20。内扭矩台肩
(6)VAM特殊扣
VAM特殊扣由法国瓦鲁瑞克公司开发,其接
头形式见图6。
螺纹类型 API BC

回答2:

你只能问一个大的钢厂了。

回答3:

vetco gray

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