Do You Know the Cause of Failure of Mining Pick and the Way to Improve Its Performance?

Mining pick is one of the vulnerable parts in coal mining and roadway driving machinery, and it is the main tool for coal falling and coal breaking. Its performance directly affects the production capacity of coal mining machinery, power consumption, working stability and the service life of other related parts. With the increase of people’s demand for energy, especially for coal, in order to improve the mining efficiency, the power of the shearer is increasing, and the quality of the pick is required to be higher and higher. As the material of the shearer pick, it is required to have … Read more

The Straightforward and Informative Intro about Common Elements Added into Alloy Steel

As is familiar to us, elements to be put into some kind of steel alloy for improving or altering its properties are regarded as alloy elements. Commonly used alloying elements are chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, silicon, manganese, aluminium, copper, boron, rare earth, etc. Phosphorus, sulphur and nitrogen also play the role of alloys in some cases. Cr Chromium can increase hardenability and secondary hardening of steel. It can improve hardness and wear resistance of carbon steel without brittleness of steel. When the content exceeds 12%, the steel has good high temperature oxidation resistance and oxidation … Read more

Structure and Classification of Titanium Alloys

Base knowledge of titanium Titanium is an important structural metal developed in the 1950s. Titanium alloys are widely used in various fields because of their high specific strength, good corrosion resistance and high heat resistance. Many countries in the world have recognized the importance of titanium alloy materials, and have successively studied and developed them, and obtained practical application. Titanium is the fourth B element in the periodic table. It looks like steel and has a melting point of 1 672 C. It is a refractory metal. Titanium is abundant in the crust, far higher than common metals such as … Read more

Is cold upsetting the same as cold extrusion? What’s the difference between them?

Let ‘s just cut into the case. What is cold extrusion? Cold extrusion of cold extrusion workpiece is to place metal blank in the cold extrusion die cavity. At room temperature, pressure is exerted on the blank through the fixed punch on the press, so that the metal blank can produce plastic deformation and the processing method of parts is made. Obviously, cold extrusion processing relies on the die to control the metal flow, and depends on the large volume of metal to rotate. Move to form parts. In terms of extrusion equipment, our country has the ability to design … Read more

Characteristics and Application of Common Bearing Materials

As we all know, there are many kinds of bearing materials in the market. There are three kinds of common bearing materials: metal materials, porous metal materials, and non-metamaterials. Metal Materials Bearing alloys, bronze, aluminum-based alloys, zinc-based alloys, etc. are all metal materials. Among them, bearing alloys, also known as white alloys, are mainly alloys of lead, tin, antimony or other metals, which have low strength under heavy load and high-speed conditions. The reason is because of its characteristics, such as good wear resistance, high plasticity, good running-in performance, good thermal conductivity, good glue resistance and good adsorption with oil. However, … Read more

CHARACTERISTICS AND DIFFERENCES OF QUENCHING CRACK AND FORGING CRACK

Quenching crack is a common quenching defect, which is caused by many factors. Because the defects of heat treatment begin with product design, the work of preventing cracks should start with product design. It is necessary to select materials correctly and design structures rationally, put forward appropriate technical requirements for heat treatment, properly arrange technological route, select reasonable heating temperature, holding time, heating medium, cooling medium, cooling method and operation mode, etc. Material aspect 1. Carbon is an important factor affecting quenching tendency. With the increase of carbon content, MS point decreases and quenching tendency increases. Therefore, under the condition … Read more

Application of Scanning Electron Microscope in Material Analysis

Since the first commercial scanning electron microscope came out in 1965, after 40 years of continuous improvement, the resolution of scanning electron microscopy has increased from 25 nm of the first one to 0.01 nm. Most scanning electron microscopy can be combined with X-ray spectrometer and X-ray energy spectrometer, which has become a comprehensive analysis of the surface micro-world. Multifunctional electron microscopy instrument. Scanning electron microscopy (SEM) has become a powerful tool widely used in various scientific fields and industrial sectors. Scanning electron microscopy (SEM) has been widely used in many fields, such as geology, biology, medicine, metallurgy, mechanical processing, … Read more

An Overview of Progressive Die&Stamping for Beginner New to Stamping

Function and Definition of Progressive Die The English name progressive die refers to a series of stamping dies which are made up of several working stations, each working station completes different processing, each working station is related in sequence, and a series of different stamping processes are completed in one stroke of the punch. Its function is to use the punch and die to exert a certain form and size of force on the sheet metal, so that the material can produce plastic deformation, thereby transforming the hair germ into product parts. Structure Composition of Progressive Die 1. The progressive … Read more

The Difference between Few Common Stainless Steels’ Properties and Composition

stainless steel is used for corrosive environments. By adding some amounts of elements, such as nickel and chromium, outstanding corrosion resistance are obtained. To correctly select the grade right for the project. We share this blog about few common grades of stainless steel to get you preliminarily understand them.  Classification of all common STSs by their component According to the composition, it can be divided into Cr system (SUS 400), Cr-Ni system (SUS 300), Cr-Mn-Ni system (SUS 200) and precipitation hardening system (SUS 600). 200 Series-Chromium-Nickel-Manganese Austenitic Stainless Steel 300 Series-Chromium-Nickel Austenitic Stainless Steel 301-good ductility, used for molding products. … Read more

What are Super Stainless Steels?

Super stainless steels may be not a common material to you, which are referred to a special type added with a higher content of Nickel, chromium, molybdenum than conventional stainless steel. This blog will help you to get knowledge of them and determine which one is good for your project. According to their microstructural characteristics, super inox can be divided into super ferritic stainless steel, super austenitic stainless steel, super martensitic stainless steel and super duplex stainless steel. Super austenitic stainless steel On the basis of common austenitic stainless steel, this alloy prevents intergranular corrosion caused by precipitation of Cr23C6 … Read more

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