Sharpening machine for weld reinforcement in longitudinal welded pipe

A technology of straight seam welded pipe and weld reinforcement, which is applied in the direction of machine tools, grinding machines, grinding/polishing equipment, etc. suitable for grinding the edge of workpieces, and can solve the problems of narrow space, high labor intensity, downgraded use, etc., and achieve guaranteed The effect of working status, convenient operation and simple steps
CN105290907AActive Publication Date: 2016-02-03BAOSHAN IRON & STEEL CO LTD
10 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAOSHAN IRON & STEEL CO LTD
Publication Date
2016-02-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a sharpening machine for the weld reinforcement in a longitudinal welded pipe. The sharpening machine comprises a sharpening trolley comprising a trolley body, a sharpening grinding machine arranged on the trolley body, and a driving device connected with the sharpening trolley; a driving element drives the sharpening trolley to go into the longitudinal welded pipe to sharpen the weld reinforcement. The sharpening machine for the weld reinforcement in the longitudinal welded pipe is capable of performing total-length or local sharpening on a weld joint in a steel pipe stably, reliable and automatically, and therefore, the labor intensity of the working personnel is reduced and the working performance is improved. Besides, the overall structure of the sharpening machine is simple, and an adjustment method of the sharpening machine is simple, convenient and easy to operate; the involved sharpening parts are not easy to damage and low in maintenance cost.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a grinding machine, in particular to a welding seam grinding machine. Background technique

[0002] The weld reinforcement of straight seam welded pipe is one of the important factors to judge the quality of the weld. Excessive weld reinforcement will not only increase the anti-corrosion cost of the welded pipe, but also lead to stress concentration at the weld toe, which will easily induce weld toe cracks and increase the service risk of the pipeline. In the API5L pipeline steel pipe specification, there are clear regulations and requirements for the weld reinforcement, and high-standard steel pipes such as oil, gas, and marine pipes further require that the weld reinforcement should not exceed 2.5mm.

[0003] For steel pipes with excessively high weld reinforcement, manual grinding is usually used to remedy them. Compared with the outer weld, the manual grinding difficulty and strength of the inner weld are greatly increase...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More