2021-10-18 Steel World Comments Off on Layout of forging steel workshops in specific steel mills
Design of special steel forge shop (design of special steel forge shop) The use of forging equipment is used to plan billeting or finished products for special steel ingots. The forging steel workshop...
2021-10-18 Steel World Comments Off on Side squeeze
The outflow direction of the sideway extrusion product is 90 with the direction of movement of the extrusion rod. The extrusion method is also called horizontal extrusion. It can be divided into one-w...
2021-10-18 Steel World Comments Off on Regulatory valve composition classification and practical application
1 The composition and classification of the regulating valve The regulating valve, also known as the control valve, is the main type of actuator. By receiving the control signal output by the regulati...
2021-10-18 Steel World Comments Off on What is steel futures? What are the application areas of steel futures?
In October, the overall market news was relatively calm, and the trading sentiment in the rebar futures market weakened. Since the completion of the month swap from the 1301 rebar contract to the 1305...
2021-10-18 Steel World Comments Off on Dynamic Tensile Deformation and Fracture Mode of Superalloy Welded Joints
0 Introduction In the application of superalloys, welding is an important manufacturing process, and welding quality plays a decisive role in the entire welding structure. The high-temperature alloy w...
2021-10-18 Steel World Comments Off on Standard Specification for High Density Polyethylene (HDPE) Pipes for Water Supply
National standard for high-density polyethylene (HDPE) pipes for water supply National Standard of the People’s Republic of China GB/T 13663-92 High-density polyethylene (HDPE) pipes for water supply ...
2021-10-18 Steel World Comments Off on Ultra-low cement castable for furnace mouth of mixer car
Patent No.: 98120044.3 Patentee: Baoshan Iron and Steel (Group) Company Technical Abstract: The present invention relates to an ultra-low cement castable for the furnace mouth of a mixed iron car, whi...
2021-10-18 Steel World Comments Off on What are the drain pottery pipes and accessories
Types of Standards People’s Republic of China Building Materials Industry Standards Standard issuance unit Approved by the National Bureau of Building Materials Industry 1998-05-14 Standard stan...
2021-10-16 Steel World Comments Off on What is construction steel? What are the application areas of construction steel?
Building steel materials can be composed of various stress-bearing components according to different needs of the structure, and of course, they can also be used as connectors between components. It i...
2021-10-16 Steel World Comments Off on Application of simulation production in automobile panel mould manufacturing
With the rapid development of the national economy and the substantial improvement of people’s living standards, people’s demand for automobiles is increasing, and the market competition f...
2021-10-16 Steel World Comments Off on What are the check valve specifications?
standard encdoing Standard Chinese name Standard English name SY/T5215-87 Drill check valve GB/T12235-1989 Universal valve flange connection steel globe valve and lift check valve General purpose indu...
2021-10-16 Steel World Comments Off on Two deformation systems of temperature controlled rolling
There are two deformation systems for temperature-controlled rolling: (1) Two-stage deformation system. Rough rolling is rolled in the austenite recrystallization zone, and the austenite grains are re...
2021-10-16 Steel World Comments Off on The development process of cold extrusion technology at home and abroad
Modern cold extrusion technology began at the end of the 18th century. The French began cold extrusion by extruding lead from small holes into bullets during the French Revolution. In 1830, some peopl...
2021-10-16 Steel World Comments Off on What are the practical words for pressure vessels
ASME commonly used terms Abrasion, allowance for wear, margin Accessibility, pressure vessels Access openings Allowance for corrosion, erosion, or abrasion Corrosion margin Erosion or/wear margin Appl...
2021-10-16 Steel World Comments Off on What is seamless copper water pipe and copper gas pipe
1 Scope This standard specifies the requirements, test methods, inspection rules and signs, packaging, transportation and storage for drawing seamless copper water pipes and copper air pipes. This sta...
2021-10-16 Steel World Comments Off on Post-sintering treatment
1. Re-pressing In order to improve physical and (or) mechanical properties, pressure is usually applied to sintered products. 2. Finishing sizing is the re-pressing in order to achieve the required si...
2021-10-16 Steel World Comments Off on Common faults and treatment methods of pickling units
1. After the shift, the equipment in the process section shall be patrolled: ⑴P1～P17 whether the pump is running smoothly (whether there is vibration), whether the pressure is normal, whether there is...
2021-10-16 Steel World Comments Off on What’s the oil extraction expertise
When there is a pressure difference in permeability, the property of the rock to allow liquid and gas to pass is called the permeability of the rock, and the permeability is the quantitative expressio...
2021-10-16 Steel World Comments Off on What is a grain-oriented silicon steel strip (YB/T5224－1993)
Note: 1. Iron loss P1. 0/400, Pl.5/400, Pl.0/1000, P0.5/3000 respectively indicate when the frequency is 400Hz, the magnetic induction value is 1.0T, 400Hz, 1.5T, 1000Hz , 1.0 and 3000Hz, 0.5T specifi...
2021-10-15 Steel World Comments Off on Tongue die extrusion
On an extruder without an independent perforation system, a tongue-shaped die (also called a bridge die) is used to plastically deform the solid billet to form various hollow material extrusion proces...
2021-10-15 Steel World Comments Off on Factors affecting strip pickling
1. The influence of hydrochloric acid concentration and temperature In the hydrochloric acid solution, the pickling speed increases with the increase of acid concentration and temperature, but because...
2021-10-15 Steel World Comments Off on Energy-saving application of Linko frequency converter in the oil pump of oil storage depot
Foreword: In the operation and production process of oil depots, oil transfer pumps are the most frequently used equipment in the entire production system. Most oil transfer pumps in oil depots use st...
2021-10-15 Steel World Comments Off on Study on the efficiency of the new type ferroelectric ceramic raw material medium
1 In order to obtain ceramic capacitor materials with better dielectric functions, this article selects PM N-PT-BT (ie Pb (M g 1/ 3 N b 2/ 3) O 3-PbT iO 3-BaT iO 3) ternary system , And its doping mod...
2021-10-15 Steel World Comments Off on Electric heating of steel ingots
Electric reheating of ingot (electric reheating of ingot) The heating of a steel ingot in an electric furnace. There are many types of electric furnaces, and the electric furnaces used for heating ste...
2021-10-15 Steel World Comments Off on Cylindrical gear machining process
The machining process of cylindrical gears should generally include the following: gear blank machining, tooth surface processing, heat treatment process and tooth surface finishing. In the process of...
2021-10-15 Steel World Comments Off on Water flow control technology of component air-cooled heat pump unit
Introduce the water flow guarantee method of modular air-cooled heat pump unit and the application of pressure difference water flow switch in modular water system. Key words: Modular unit air-cooled ...
2021-10-15 Steel World Comments Off on Brief Introduction of Magnetite Beneficiation Process and Equipment
Magnetite occupies a large proportion of China’s iron mineral reserves, reaching 48.8%. Finding a reasonable magnetite beneficiation technology and machinery to deal with magnetite is of great s...
2021-10-15 Steel World Comments Off on Annealing purpose of stainless steel strip
In order to obtain the best performance of stainless steel materials or to create necessary conditions for stainless steel users to perform stainless steel cold and hot processing, stainless steel mat...
2021-10-15 Steel World Comments Off on Research and Development of Large Diameter Centrifugal Casting Ductile Iron Pipe
1. Production scale selection Our factory originally only had two water-cooled metal centrifugal casting machines, the maximum specification is DN700, and the annual production of DN100-DN700 ductile ...
2021-10-15 Steel World Comments Off on Industrial piping engineering installation and standard specifications (8)
5 Pipe welding 5.0.2 Article 5.2.19 of the original code stipulates that “the distance between the two circumferential seams of a straight pipe section shall not be less than 100 mm”. It i...
2021-10-15 Steel World Comments Off on tensile strength
The tensile strength of high-strength concrete is divided into three types: axial tensile strength, split tensile strength and bending strength. Because the axial tensile test is more complicated, it ...
2021-10-15 Steel World Comments Off on How to remove iron impurities in kaolin
Kaolin, as an industrial mineral deposit with excellent functions, is widely used in ceramics, papermaking, rubber, plastics, building materials, paints, petrochemicals, etc., especially in the cerami...
2021-10-15 Steel World Comments Off on It is suitable to stop the pump during the zero-flow water supply
.Introduction In order to save energy and reduce cost, variable frequency water supply usually adopts multiple pumps in parallel with constant pressure variable water supply. This is because: ①a v...
2021-10-15 Steel World Comments Off on The difference between HRA, HRB and HRC in Rockwell hardness
The so-called various hardnesses are the values measured by different measurement methods according to the hardness level. They are organized according to some standards for reference. Please read t...
2021-10-15 Steel World Comments Off on The growth and application of water ring heat pump VRV products abroad
Abstract: Introduce a new type of air-conditioning method that has emerged in foreign countries in the past ten years. This article introduces the development and application of VRV water ring heat pu...
2021-10-15 Steel World Comments Off on Technical Specification for Polyethylene Gas Pipeline Engineering (4)
6 Test and acceptance 6.0.1 The test and acceptance of polyethylene gas pipelines shall comply with the current industry standard “Code for Construction and Acceptance of Urban Gas Transmission ...
