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What are the classifications of flanges?

2023-10-31 Steel World Comments Off on What are the classifications of flanges?

The above figure gives the general situation of flange classification. Let’s take a detailed look at various types of flanges. According to the degree of overall properties: ​ (1) Integral flange 1. F...

pressure perforation

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The process of punching the solid blank into a capillary tube by extrusion method. There are two types of perforated capillary tubes: those with cup bottoms and those with penetrations, which are used...

Effect of casting structural design on die-casting mold life

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1) Under the condition that the structural strength of the casting is met, the die-casting mold should adopt a thin-walled structure. In addition to reducing the mass of the casting, this also reduces...

lost foam casting

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Lost foam casting (also known as real mold casting) is to bond and combine foam models similar in size and shape to the castings into model clusters. After brushing with refractory paint and drying, t...

What is metal material testing

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Metal materials are metallurgical products. The production, ordering, transportation, use, storage and inspection of metal materials must be based on unified technical standards – metallurgical ...

Flange connection structure and sealing knowledge

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The flange connection structure is an assembly consisting of a pair of flanges, several bolts, nuts and a gasket. It is an assembly drawing of the overall structure of the pipe flange connection. In p...

The position of the vertex of the swing head mold

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The swing head swings around its apex. The apex O of the swing head mold must be located on the OM axis (machine axis) to ensure the dimensional accuracy of the swing grinding part and the correct mol...

Analysis of control valves

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Correctly select the end connection form of the control valve and the process pipeline (annular surface connection/convex surface connection/wafer type). If equipped with a counter flange, the valve s...

Asymmetric rolling

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Asymmetrical rolling is a rolling process in which the deformation conditions are asymmetrical to the horizontal center plane of the rolled piece. The deformation conditions of rolling include the ext...

Cold heading

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Cold heading is a forging forming method that thickens the top of a bar or wire at room temperature. Cold heading is mainly used to manufacture bolts, nuts, nails, rivets, steel balls and other parts....

Causes and elimination methods of wire ears

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The strip-shaped protrusions on the surface of the wire along the rolling direction are called ears, and there are single-sided ears and double-sided ears. Due to tension in the production of high-spe...

How niobium regulates austenite

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Before the 1980s, controlled rolling technology was not perfect, the process was very complex and confusing, and the role of microalloying was elusive depending on the controlled rolling system. The c...

Application areas of galvanized pipes

2023-10-30 Steel World Comments Off on Application areas of galvanized pipes

Often referred to as galvanized pipes, the purpose of galvanized pipes is that the iron pipes used for gas and heating are also galvanized pipes. Galvanized pipes are used as water pipes. After a few ...

Cyanide and characteristics of steel

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Cyanidation of steel is also called “carbonitriding”. The initial cyanide is carried out with cyanide salt, so it is generally called ‘cyanation’. It is a chemical heat treatme...

Melt outside furnace purification

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The metal melt discharged from the furnace is continuously processed to remove gases, inclusions and harmful elements before casting, which is also called melt online processing. The purification effe...

Galvanized pipe painting process

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A continuous galvanized pipe painting production process and equipment. The process includes the following steps: passivation step, cleaning step; painting step; curing step. Before the painting step,...

What are the specifications of galvanized pipes?

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In order to improve the corrosion resistance of steel pipes, general steel parts pipes (black pipes) are galvanized. Galvanized steel pipes are divided into two types: hot-dip galvanizing and electric...

Ladle blowing argon stirring form

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Ladle blowing with argon usually comes in two forms: (1) Bottom blown argon. Bottom-blown argon is mostly blown into the argon gas through a breathable brick installed at a certain position at the bot...

Characteristics of Arc Cross Wedge Rolling Mill

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The main advantages of the arc cross wedge rolling mill are simple structure, lighting weight and low equipment cost. Compared with the roller cross wedge rolling mill, it only needs to drive one roll...

Knowledge about cold-dip galvanized steel pipes

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You can check it in the hardware manual. Generally speaking, the diameter of the pipe can be divided into outer diameter, inner diameter and nominal diameter. The outer diameter of a seamless steel pi...

blank mold groove

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The die slot provided on the forging die for die forging to complete the initial blank making step (see forging step) is used to forge the blank into a pre-forged blank with a shape as close as possib...

What is the standard of 0Cr18Ni9 stainless steel plate?

2023-10-27 Steel World Comments Off on What is the standard of 0Cr18Ni9 stainless steel plate?

0Cr18Ni9 stainless steel plate is the most widely used stainless steel heat-resistant steel and is used in food equipment, general chemical equipment, and atomic energy industrial equipment. Generally...

0cr18ni9 stainless steel plate specifications introduction

2023-10-27 Steel World Comments Off on 0cr18ni9 stainless steel plate specifications introduction

Cr18ni9 stainless steel has good corrosion resistance, heat resistance, low temperature strength and mechanical properties. It has good hot workability such as stamping and bending, no heat treatment ...