Advantages and disadvantages of hot-rolled seamless steel tubes

2022-12-27

　　Generally, the production process of seamless steel pipe can be divided into cold drawing and hot rolling. Hot rolling, as the name implies, has high temperature of rolled piece, so the deformation resistance is small and lar...

Control points of HRB400, hrb400e and HRB500 steel bar rolling

2022-08-08

　　1、 Preparation of raw materials 　　1. The feeding team shall do a good job in the classified stacking and identification of converter hrb400-hrb500 steel billets to avoid mixed numbers. 　　2. The lagging blanks shall be...

Selection and principle of cold rolling oil

2022-07-21

　　1. Preface 　　Whether the rolling oil is selected correctly in cold rolling directly affects the output and quality of the rolling mill Especially for the newly-built rolling mill, the cold rolling oil suitable for the cha...

Research on technology of reducing consumption and improving efficiency of steel rolling heating furnace

2022-07-07

　　Heating furnace is an important thermal equipment in the production process of iron and steel industry, and plays a very important role in steel rolling production. Its energy consumption accounts for 6% of the total energy c...

Spinning machine and pinch roll

2022-07-05

　　Effect of current limit amplitude adjustment of pinch roll 　　By adjusting the current limit amplitude of the pinch roll, the working state and clamping capacity of the pinch roll in the clamping process can be changed. Th...

Analysis of mechanical screwdown device based on 4300mm plate mill of Xingcheng Special Steel

2022-07-04

　　Abstract: in today's society, steel is a very important material, which is widely used in many fields. Taking Xingcheng Special Steel as an example, there are some problems in the mechanical screwdown device of 4300mm pla...

Operating procedures for guide fitter

2022-06-27

　　1、 Standards and parameters: 　　1. the guide box, guide pair, guide roller, wear plate, nose cone and other guide components of each Sorty shall be selected in strict accordance with the guide layout table. 　　2. the as...

Summary of teaching materials for rolling adjustment training

2022-06-27

　　Adjustment of roll gap 　　Whether the roll gap adjustment is correct or not directly affects the stability of the rolling process, and also determines the size of the rolled piece outlet. The judgment basis of roll gap adj...

Technical operation specification for finishing mill

2022-06-25

　　1. the finishing mill is the key part of the high-speed wire workshop. The technical requirements and process disciplines are obviously different from those of other units, and high vigilance shall be maintained at all times;...

grooveless rolling

2022-06-23

　　The method of rolling billets and bars on flat rolls without grooves is also called flat roll rolling, round edge rectangular rolling or grooveless rolling. 　　Square billet, square steel and round steel are generally roll...

Installation and adjustment of guide

2022-06-22

　　Adjustment of round steel and threaded guide: 　　1) Single line part 　　1. During the adjustment of all imported rolling guides, the guide roller of the guide must be consistent with the rolling center line of the guide...

High precision cold rolling strip shape control and equipment technology

2022-06-21

　　The research on "high precision cold rolled strip shape control and equipment technology" aims to develop and break through key technologies such as adaptive setting of strip shape target curve, multivariable optimi...