METHOD OF MANUFACTURING CONTINUOUS SUCKER ROD

摘要

A method for manufacturing a continuous sucker rod coil, wherein the method includes the step of selecting a plurality of input coils, each input coil having the same uniform hardness, and each input coil having two free ends. The method further includes the step of fusing adjacent free ends of adjacent input coils together to form one continuous length of rod, the fusing creating fused areas and a heat-affected zone at each fused area. The method also includes the step of treating each of the heat-affected zones to alleviate irregularities induced during fusing. Additionally, the method includes the step of winding the continuous length of rod into a finished coil.

主权项

1. A system for manufacturing a continuous sucker rod coil, the system comprising:
a single production line, comprising:
a coil straightener configured to straighten input coils, each input coil having the same uniform hardness;a welding machine that is configured to:
fuse adjacent input coils together to form one continuous length of fused input coils, wherein fusing creates a heat-affected zone at each fused joint; andtreat the heat-affected zones to alleviate irregularities induced during fusing, wherein the welding machine selectively treats sections of the fused input coils to form treated sections and untreated sections;a flaw detection system for inspecting a surface of the straightened coils;a surface treating machine configured to clean a surface of the input coils and induce compressive stress in the surface; anda transport reel to receive the continuous length of fused coils.