Flange end plate processing technology

Abstract

The invention discloses a flange end plate machining process, which includes steps, such as shaping a billet into a whole roll of semifinished billet product by continuous casting, continuous rolling and hot bending, stacking and cooling, cutting, welding, flattening and turning. The whole production process is production automation monitored on line, so that the mass production of finished flange end plate products is realized; when the process of the invention is adopted, the steps and equipment of the process are less, the efficiency of flange end plate production is effectively increased, moreover, the quality uniformity of produced flange end plates is ensured, the related national standard is met, and the flange end plate machining process has the characteristic of low cost.

Description

[0001] 【Technical field】 [0002] The invention relates to a manufacturing process, in particular to a flange end plate processing process. [0003] 【Background technique】 [0004] With the rapid development of our country's economy, the basic engineering of the construction industry has encountered unprecedented development opportunities, and the basic engineering market is very broad. Especially after popularizing the use of pretensioned prestressed concrete pipe piles as the load-bearing foundation of buildings in recent years, the market demand for flanged end plates for pipe piles (hereinafter referred to as flanged end plates) is increasing year by year and the demand is huge. The original flange end plate is generally made of Q235 hot-rolled steel plate to cut the inner circle and outer circle. The flange end plate manufactured by this method has a lot of leftover material, large cutting loss and high cost. [0005] For this reason, there have been centrifugal casting, ...

AI Technical Summary

Problems solved by technology

Using centrifugal casting, the internal structure of the product is coarse, the internal stress is large, the surface is rough, and cracks are prone to occur; using casting and forging, the product has pores, slag inclusions, unstable components and unstable quality; using flat steel cold bending, then There are many production processes and high cost; the ground strip steel is used for rolling, and its products have the defect of unstable internal quality, and the ground strip steel is banned from production by the state

[0006] Although the production methods of the above-mentioned flange end plates are lower than the direct steel plate cutting method, they still cannot meet the requirements of the national standard (JC / T947--2005) for the production of flange end plates. They are low-quality products, and most It is produced in a small workshop-like factory without quality control methods such as chemical composition testing and mechanical performance testing. The production technology is relatively backward and cannot be automated.