2021-10-19 Steel World Comments Off on An Experimental Study on Oolitic Hematite Flocculation and Strong Magnetic Separation
1. Foreword According to statistics, China consumes more than 3 million tons of metal wear-resistant materials each year, of which only 100,000 tons of liners are consumed by metallurgical mines. At p...
2021-10-19 Steel World Comments Off on What is Cr2 steel? What are the application areas of Cr2 steel?
The size of the steel does not change much during heat treatment, quenching and tempering. Because of these characteristics, Cr2 steel is widely used in measuring tools such as sample plates, pallets,...
2021-10-19 Steel World Comments Off on Causes of metal splashing and prevention methods
When the content of TFe in the slag is too low, the slag is sticky, and the molten slag cannot return to the covering liquid surface in time after the molten pool is blown by the oxygen flow. The disc...
2021-10-19 Steel World Comments Off on New Process and New Technology of Iron Ore Electric Separation–Electric Characteristics of Minerals
The so-called electrical properties of mineral deposits refer to the resistance, dielectric constant, specific conductivity and rectification of the mineral deposits, which are the basis for judging w...
2021-10-19 Steel World Comments Off on The relationship between geometric tolerances and alternative applications
The national standard GB1182～1184 “Shape and Position Tolerance” includes shape tolerance-straightness, flatness, roundness, cylindricity, line profile, surface profile; orientation positi...
2021-10-19 Steel World Comments Off on What is T4 steel? What are the application areas of T4 steel?
High-speed tool steel: T4 Executive standard: ASTM A600-1992a ASTM T4 is a tungsten-based general cobalt-containing high-speed steel. Compared with W18Cr4V, the red hardness and high temperature hardn...
2021-10-19 Steel World Comments Off on Envelope extrusion
Sheath extrusion is an extrusion method in which liquid metal is coated on the core wire material. This method is specially used for cable sheathing, so it is also called cable sheathing extrusion. Th...
2021-10-19 Steel World Comments Off on What is the valve regulation organization
The adjustment mechanism is a device that converts the change in the output displacement of the actuator into a change in the flow area between the valve core and the valve seat of the control valve. ...
2021-10-19 Steel World Comments Off on Common misoperations and solutions in pump experiments
Abstract: Summarize some common wrong operations and solutions in pump test. The correct operation procedure that should be adopted in the performance test is also introduced by taking the open bench ...
2021-10-19 Steel World Comments Off on What is 08F steel? What are the application areas of 08F steel?
In 08F, F means rimmed steel, 08 means carbon content is 8/10000, 08F is the grade of 1006 steel. 08F steel has very low strength and hardness, and extremely high plasticity and toughness. It has good...
2021-10-18 Steel World Comments Off on Reasons for corrosion of slag splash adhesion layer
Experimental studies have shown that the resistance to melting loss of the slag splash layer is related to the TFe content in the slag splash layer. The higher the TFe content, the easier the slag spl...
2021-10-18 Steel World Comments Off on What is 9cr18mov steel? What are the applications of 9cr18mov steel?
9Cr18MoV steel has good rust resistance. It is a high-quality stainless steel currently used in the high-end batch tool market. Its strength and sharpness are better than ATS-34, and its chromium cont...
2021-10-18 Steel World Comments Off on Molten steel refining process
Patent No.: 98125048.3 Patentee: Baoshan Iron and Steel (Group) Company Technical Abstract: The present invention discloses a molten steel refining process, which belongs to the treatment method of mo...
2021-10-18 Steel World Comments Off on Function characteristics and selection of canned motor pump
4 F, m& ?: `2 ]$ `& F| Blue Pump Technology Forum With the development of the chemical industry and the improvement of people’s awareness of the environment and safety, the requirements for ch...
2021-10-18 Steel World Comments Off on Membrane technology application: flexible and economical water treatment techniques
Membrane technology is a new technology that can be used flexibly. This article introduces two application cases of membrane technology in practical engineering. The water supply department of Carmich...
2021-10-18 Steel World Comments Off on Internal cracks generated during straightening of continuous casting slab
In continuous casting production, the limiting factor to increase the drawing speed, One is that the billet may be deformed in the secondary cooling zone and break out of the crystallization zone; The...
2021-10-18 Steel World Comments Off on What is 4Cr13 steel? What are the application areas of 4Cr13 steel?
●Characteristics and scope of application: Note: This steel has poor weldability, so attention must be paid when using it. ●Chemical composition: Manganese Mn: ≤0.80 Sulfur S: ≤0.030 Phosphorus P: ≤0....
2021-10-18 Steel World Comments Off on GB T12241-2005 safety valve general conditions
1 Scope This standard specifies the terminology, design and performance requirements, testing, displacement determination, equivalent displacement calculation, marking and lead sealing, quality assura...
2021-10-18 Steel World Comments Off on Maintenance of mechanical seals for pumps
There are many types of mechanical seals for maintenance pumps with mechanical seals, with different models, but there are mainly five leakage points: (l) the seal between the shaft sleeve and the...
2021-10-18 Steel World Comments Off on What is S50C steel? What are the applications of S50C steel?
Through the implementation of spheroidizing treatment, the cutting performance of this type of carbon steel can be improved. The steel is usually used after tempering to a hardness of 19~22HRC to incr...
2021-10-18 Steel World Comments Off on The working principle of the three-roll planetary rolling mill
The main train of the three-roll planetary rolling mill is divided into two parts: the rolling mill body and the transmission. The rolling mill body is composed of a slewing disk system, a central sle...
2021-10-18 Steel World Comments Off on What is SKH9 steel? What are the applications of SKH9 steel?
(%): Carbon: 0.8-0.9 Forging: 1.100～900℃ Annealing: Heat to 800-850°C, stay at this temperature for two to four hours, and let it cool down in the furnace. Quenching: first preheat to 550-600°C, then...
2021-10-18 Steel World Comments Off on Experiment on the separation of high-iron chromite by weak magnetic-strong magnetic technology
Chromium is an important strategic resource and an important raw material for the stainless steel industry. It is also widely used in refractory materials, chemicals and light industry. With the devel...
2021-10-18 Steel World Comments Off on What are the two variables of hydraulic pump monitoring
1 Current situation After the reform and opening up, with the vigorous development of China’s economic construction, the valve industry has also shown a thriving vitality. Now there are thousa...
2021-10-18 Steel World Comments Off on Defects and Prevention of Lost Foam Casting-Sand Sticking
The molten metal penetrates into the sand mold to form a mechanical mixture of metal and sand. There are two situations: one is that the molten metal penetrates into the molding sand through the crack...
2021-10-18 Steel World Comments Off on What is FDAC steel? What are the applications of FDAC steel?
Carbon (C) 0.33～0.42 Manganese (Mn) 0.55～0.75 Alum (V) 0.30～0.80 Silicon (Si) 0.80～1.20 Chromium (Cr) 4.80～5.50 Molybdenum (M0) 1.20～1.60 Phosphorus (P) ≤0.030 Sulfur ( S) 0.10～0.151. The hardness is ...
2021-10-18 Steel World Comments Off on Selection of cutting parameters of TA15 and TB6 titanium alloy parts and tool technical parameters
The main machining method titanium alloy parts have a relatively large machining allowance, some parts are very thin (2～3mm), and the dimensional accuracy and shape tolerances of the main mating s...
2021-10-18 Steel World Comments Off on Insulation and soaking method
The steel ingot heating method uses the latent heat of the liquid core and its heat recovery effect to make the surface and the inside temperature of the steel ingot uniform. The specific steps are: a...
2021-10-18 Steel World Comments Off on What is the production process of ultra-low carbon clean steel
Before and after the secondary refining process, the secondary oxidation of molten steel caused problems in the production of clean steel. The ferrous oxide, manganese oxide, and silicon dioxide conta...
2021-10-18 Steel World Comments Off on What is 618HH steel? What are the applications of 618HH steel?
1. Good polishing and laser etching performance 2. Good processing performance 3. High purity and excellent uniformity 4. Better abrasion resistance, longer mold life, with the following advantages: 1...
2021-10-18 Steel World Comments Off on Characteristics of plastic pipes, operation steps and precautions
With the improvement of people’s living standards, environmental protection awareness and health concerns, a green building materials industry has been set off in the field of water supply and d...
2021-10-18 Steel World Comments Off on Compound extrusion
Compound extrusion (compound extrusion) is an extrusion method in which metal flows in two opposite directions simultaneously in the space between the extrusion rod and the extrusion barrel and the ex...
2021-10-18 Steel World Comments Off on Specifications of the Ministry of Machinery Industry-the way of compiling valve models
This standard applies to gate valves, globe valves, throttle valves, ball valves, butterfly valves, diaphragm valves, plug valves, check valves, safety valves, pressure reducing valves, traps, and plu...
2021-10-18 Steel World Comments Off on What is XW42 steel? What are the application areas of XW42 steel?
①High wear resistance; ②High compressive strength; ③High surface hardness after hardening; ④Excellent overall hardenability; ⑤It has excellent stability when hardened; in addition to being suitable fo...
2021-10-18 Steel World Comments Off on What is the application of organic peroxide to produce WS-700 special resin for PVC pipe fittings
Introduction At present, rigid polyvinyl chloride (PVC) pipes and fittings are one of the application fields of polyvinyl chloride products. After years of vigorous development, domestic special pipe ...
2021-10-18 Steel World Comments Off on Measures to be taken to improve the purity of steel
The purity of molten steel mainly refers to the gas content and the number, shape and distribution of inclusions in the steel. Only pure molten steel has good castability, can guarantee the quality of...
