Steel World

2023-10-25 Steel World Comments Off on rolling pressure

The rolling pressure is the force exerted by the metal on the roll perpendicular to the horizontal projection of the contact area when the rolled piece is deformed, as shown in Figure 1. It is an impo...

2023-10-25 Steel World Comments Off on Splash hazards, causes and types

Splashing is a phenomenon often seen in the top-blown converter blowing process. The hazards of splashing are as follows: (1) Metal loss caused by splashing is 0.5% to 5%. Avoiding splashing is equiva...

2023-10-25 Steel World Comments Off on Deformation force

Deformation force refers to the force exerted by moving tools on deformed materials during metal etching aluminum. Such as the hammer head pressure P during upsetting (see figure), the roll pressure d...

2023-10-25 Steel World Comments Off on Slow wind operation

Slow wind blowing is a blast furnace operation method that reduces blast furnace productivity and pressure in the furnace, allowing the blast furnace to operate in a reduced wind state. Situations tha...

2023-10-25 Steel World Comments Off on Channel steel specification table and channel steel theoretical weight table

The specifications of channel steel are expressed in millimeters of waist height (h) * leg width (b) * waist thickness (d). For example, 120*53*5 means that the waist height is 120 mm and the leg widt...

2023-10-25 Steel World Comments Off on Slit rolling method

There are currently four force methods for split rolling: (1) Roll cutting method: The rolling in the laser cutting copper pass is used to deform the rolled piece and achieve cutting at the same time....

2023-10-25 Steel World Comments Off on How are the materials of steel differentiated?

, The concept of steel: Steel is a steel ingot, billet or steel material that is made into various shapes, sizes and properties that we need through pressure processing. Steel is an indispensable mate...

2023-10-25 Steel World Comments Off on Nozzle end and bottom structure design

The so-called end-bottom structure refers to the structural arrangement between the water pocket at the bottom of the nozzle and the end wall. This involves the shape of the water pocket, the central ...

2023-10-25 Steel World Comments Off on The use of new Mini descaling nozzles on ordinary slab hot-rolled strips

1. Development trend of common slab descaling at home and abroad In recent years, in order to meet the descaling requirements of thin slab short-process hot rolling (hereinafter referred to as CSP) pr...

2023-10-25 Steel World Comments Off on Semi-rigid flame-retardant plastic pipe concealed construction technology

1 Scope This process standard is applicable to electrical lighting concealed pipe wiring projects in general civil buildings, and shall not be laid in high-temperature places, places susceptible to me...

2023-10-25 Steel World Comments Off on Types of cadmium plating baths

It can be divided into the following four types: (1) Alkaline cyanide plating bath. (2) Alkaline sulfate plating bath. (3) Acidic boron fluoride salt plating bath. (4) Neutral sulfate plating bath. Th...

2023-10-25 Steel World Comments Off on Pudelin method

Medieval smelting method for mass production of wrought iron. Also known as the mixing method. The structure of the Pudelin furnace is similar to that of a plain furnace, except that there is no lower...

2023-10-25 Steel World Comments Off on Common knowledge about microalloyed strip steel

Over the past 25 years, microalloyed steels (MA) have dominated the field of high-quality steels. Developments in recent years have shown that microalloyed steel is the best choice when high performan...

2023-10-25 Steel World Comments Off on How to set the valve

General Setting Regulations 1.1 Overview These regulations apply to the chemical process system major. The valves mentioned do not include safety valves, steam traps, sampling valves and pressure redu...

2023-10-23 Steel World Comments Off on Furnace conditions are biased

Asymmetrical descent of burden is a manifestation of abnormal furnace conditions during the blast furnace ironmaking process. At this time, the unloading speeds on both sides of the blast furnace are ...

2023-10-23 Steel World Comments Off on Structural features of high-efficiency continuous casting machine

Compared with traditional continuous casting, high-efficiency continuous casting is characterized by high casting speed, high quality, high efficiency, high operating rate, and high temperature castin...

2023-10-23 Steel World Comments Off on Deformation characteristics of thinning spinning

Thinning spinning, also known as powerful spinning, is developed on the basis of ordinary spinning. Its deformation characteristics are: the mandrel drives the blank to rotate, and the rotating wheel ...

2023-10-23 Steel World Comments Off on Speed system of blooming mill

The rolling characteristics of steel ingots on the blooming mill are that the rolled piece is rolled back and forth, the rollers rotate forward and reverse, and the roller speed changes continuously a...

2023-10-23 Steel World Comments Off on Deformation during rolling

Deformation diagram of rolling process: During the rolling process, the flow diagram of the metal in the deformation zone in the height direction, width direction and rolling direction. The flow of de...

2023-10-23 Steel World Comments Off on Deformation characteristics of ordinary spinning

The deformation characteristic of ordinary spinning is that the metallic cementation slab mainly shrinks or expands in diameter during deformation. The diameter shrinkage is reduced diameter spinning,...

2023-10-23 Steel World Comments Off on What are the standards and calculation methods for colored stainless steel plates?

Colored stainless steel plates are used more and more widely due to their uniqueness. Nowadays, many foreign countries and regions use a large number of colored stainless steel products for decoration...

2023-10-23 Steel World Comments Off on Stripping and re-plating of cadmium plating

(1) Steel, copper and copper alloy plated parts: Dissolve and peel off the cadmium coating with the solution 1. Dilute hydrochloric acid. 2. 100g/l ammonium nitrate. 3. Waste chromic acid solution. (2...

2023-10-23 Steel World Comments Off on Hydrogen corrosion

In the environment of high temperature (usually high pressure) hydrogen and ammonia, localized metal etching copper corrosion is caused by hydrogen entering the material. The mechanism is that carbon ...

2023-10-23 Steel World Comments Off on nozzle clogging

During the pouring process, the nozzle of the intermediate tank or the submerged nozzle may become clogged due to nodulation, with mild cases requiring oxygen burning and severe cases causing interrup...

2023-10-23 Steel World Comments Off on What are the characteristics of billet heating in high-line rolling mills?

Because the high-line steel billet is a small billet with a small cross-section, generally 120mm×120mm~150mm×150mm; the length of the billet is 9~16m. The main characteristics of its heating are: shor...

2023-10-23 Steel World Comments Off on Multi-axis linkage CNC machining programming skills for large mixed-flow blades

I. Introduction The hydraulic turbine is the prime mover of hydropower generation. The quality of the turbine runner blades has a huge impact on the safety, reliability, and economical operation of th...

2023-10-23 Steel World Comments Off on The impact of uneven cooling on products after wire rod rolling

(1) The metallographic structure is not ideal. The main reason is that the grains are coarse and uneven. Due to the appearance of a large amount of hypereutectoid structure, the free ferrite in hypoeu...

2023-10-23 Steel World Comments Off on Tips and ways to improve the reliability of magnetic pumps

1. Foreword Our company’s new product 40,000 tons/year chloride equipment has been officially put into use. During the equipment selection period of the project, we conducted extensive research, adher...

2023-10-23 Steel World Comments Off on Introduction to stainless steel

Stainless steel is generally the general term for stainless steel and acid-resistant steel. 304 stainless steel toy conical compression spring refers to steel that is resistant to corrosion by weak me...

2023-10-23 Steel World Comments Off on work index

It is an indicator indicating the difficulty of material crushing or grinding in mineral processing. The initial concept is the unit work consumed when crushing materials of unlimited particle size to...

2023-10-23 Steel World Comments Off on hot extrusion

Extrusion is performed by heating the ingot to an appropriate temperature above the recrystallization temperature. During hot extrusion, the metal undergoes full recrystallization to eliminate interna...

2023-10-23 Steel World Comments Off on Experience in using steam double-effect lithium bromide absorption refrigerator

Abstract: This article summarizes the experience in the operation and maintenance of lithium chemical refrigerators, and proposes a full-process management plan and matters that need to be paid attent...

2023-10-23 Steel World Comments Off on What is the precision alloy grade (GB/T15018-1994)?

(1)How to indicate the brand number (1) Precision alloy grades are represented by a combination of Arabic numerals and Chinese pinyin letters. (2) The type of precision alloy is represented by the let...

2023-10-23 Steel World Comments Off on The principle of pickling steel billet

There are iron oxide scales of different thicknesses on the surface of hot-rolled cnc machining stainless-steel billets. All surface defects of the steel billets cannot be exposed, which affects the c...

2023-10-23 Steel World Comments Off on DLP Law

The DLP method (direct lead patenting process) is a controlled cooling process in which the wire rod is treated with two salt baths after hot rolling, referred to as the two-salt bath method. It was d...

2023-10-23 Steel World Comments Off on Control form of pneumatic valve actuator

As there are more and more control methods and means, there are many methods used to control pneumatic actuators in actual industrial daily life and industrial control. The following are commonly used...