Prestressed steel strand without pickling, non-phosphating drawing equipment and production process

Abstract

The invention belongs to the technical field of prestressed steel strand drawing and discloses pre-stressed steel strand pickling-free and phosphating-free drawing equipment and a production process. The equipment comprises a pay-off rack, a straightening traction device, a shelling device, a high-pressure washing device, a boronizing device, a drying device, a steel strand drawing device and a take-up rack which are sequentially arranged. The pre-stressed steel strand pickling-free and phosphating-free drawing equipment provided by the invention is reasonable in structural design, through the design of multiple shelling wheel sets, the drawing equipment can be matched with a pre-stressed steel strand for physical shelling, and then through the design of a rust removal casing and steel wire balls, rust attached to the pre-stressed steel strand after shelling can be further cleared, so that the overall effect of the pre-stressed steel strand after shelling is good, compared with a conventional acid method, the shelling efficiency is greatly improved, and the degree of automation is high. The adjustment of the corresponding shelling wheels can also be carried out for pre-stressed steel strands with different diameters and pre-stressed steel strands with different degrees of oxidation, so that the application range is wide.

Description

technical field [0001] The invention belongs to the technical field of drawing of prestressed steel strands, and particularly relates to a drawing equipment and a production process of a prestressed steel strand without pickling and phosphating. Background technique [0002] The traditional prestressed steel strand drawing equipment is to remove the oxide layer by pickling the wire rod in the pickling tank and the boronization tank, attaching the boronized film, and finally drawing through the drawing die equipment. The whole process not only It consumes a large area, and the working environment is in acid erosion for a long time, which makes workers prone to occupational diseases, pollutes the environment, and has low production efficiency. [0003] In addition, the prestressed steel strand needs to be attached with lubricating powder before drawing. The traditional equipment is to put the lubricating powder into the lubricating powder shell, and the steel strand passes thr...

AI Technical Summary

Problems solved by technology

[0002] The traditional prestressed steel strand drawing equipment removes the oxide layer by pickling the wire rod in the pickling pool and the boronizing pool, attaches the boronizing film, and finally draws the wire rod through the drawing die equipment. The whole process not only It consumes a large area, and the working environment is exposed to acid corrosion for a long time, which makes workers prone to occupational diseases, pollutes the environment, and reduces production efficiency.

[0003] In addition, the prestressed steel strand needs to be attached with lubricating powder before drawing. The traditional equipment is to put the lubricating powder into the lubricating powder shell, and the steel strand passes through the shell for attachment. For this kind of prestressed steel strand In the process, there are problems such as poor drawing quality, small adhesion of lubricant powder, high drawing friction, poor quality of drawn steel strands, and short service life of drawing dies.

[0004] For the traditional problems of large area, serious environmental pollution, and high labor costs, especially for environmental pollution and subsequent sewage treatment, it greatly increases the production cost of the enterprise and is not conducive to the sustainable development of the enterprise.

Images