2021-10-18 Steel World Comments Off on Prevention of common problems in municipal drainage pipes
The drainage system is one of the important facilities for the normal use of other engineering facilities in its service area, and it is very important to ensure the quality of its construction. Based...
2021-10-18 Steel World Comments Off on Talking about the Broken Wire Condition and Measures of Slow-Walking Wire Cutting
Nowadays, as the advantages of slow-moving wire over fast-moving wire are gradually discovered and recognized, slow-moving wire cutting machines are widely used when processing high-precision parts. W...
2021-10-18 Steel World Comments Off on Method for reducing non-metallic inclusions in continuous casting slab
There are non-metallic inclusions in the steel. It will destroy the continuity and compactness of the steel, which is very harmful to the performance of the steel. In order to improve the quality of s...
2021-10-18 Steel World Comments Off on What is 4Cr5MoSiV steel? What are the application areas of 4Cr5MoSiV steel?
Material name: Alloy tool steel Brand: 4Cr5MoSiV standard: GB/T 1299-1985 4Cr5MoSiV steel is air quench hardening hot work die steel, which is the H11 steel imported from the United States. Its perf...
2021-10-18 Steel World Comments Off on U.S. HI pump system material website began to be put into use
eported It is a new beginning in the field of American education. The main purpose of Pump Systems Matter (PSM) is to reduce the energy demand in the northern United States and increase the bottom li...
2021-10-18 Steel World Comments Off on The defining characteristics and basic principles of water source heat pump technology
Abstract: This article first introduces the concept and working principle of water source heat pump technology, and compares it with boilers and air source heat pumps in terms of energy utilization, a...
2021-10-18 Steel World Comments Off on What is ASP60 steel? What are the applications of ASP60 steel?
%: C: 2.03 Si: 4.0 Mn: 7.0 Cr: 6.5 Mo: 10.5 V: 6.5 Good grinding performance Good heat treatment dimensional stability good toughness Very good red hardness Very good wear resistance ASP60 steel is...
2021-10-18 Steel World Comments Off on National Plastics Quality Supervision and Inspection Center: PVC pipes belittle quality, which is equivalent to self-breaking
In the first quarter of this year, the State Administration of Quality Supervision, Inspection and Quarantine deployed and the National Plastic Products Quality Supervision and Inspection Center (Beij...
2021-10-18 Steel World Comments Off on Causes of bending when steel is cooled
Some of the cross-sectional shapes of steel are symmetrical, such as I-beams, and some are asymmetrical, such as steel rails and channel steel. Generally, the symmetrical section steel is not easy to ...
2021-10-18 Steel World Comments Off on Selection of water supply pipeline and its connection method
Foreword In the water supply project, the modern water treatment plant takes water from the water source, settles and filters it into the clean pool, and then pumps it to the urban pipe network to rea...
2021-10-18 Steel World Comments Off on What is M238 steel? What are the applications of M238 steel?
C Carbon Cr Chromium W Tungsten Mn Manganese Si Silicon V Vanadium 0.95 0.5 0.5 1.1 0.3 0.1 M238 factory specifications: hardened and tempered to 980-1080N/mm² (30-34HRC). M238 steel charact...
2021-10-18 Steel World Comments Off on Machining Skills of Fluid Dynamic Pressure Groove on End Face of Mechanical Seal Ring
1 Introduction When the contact mechanical seal is in operation, the contact surface of the moving ring and the static ring should be friction and heat. For high PV value systems, the friction heat wi...
2021-10-18 Steel World Comments Off on Application of water source heat pump in civil air defense engineering
Abstract: This article focuses on analyzing the technical obstacles of the cooling tower water source heat pump air conditioning system, and through engineering examples, demonstrates the feasibility ...
2021-10-18 Steel World Comments Off on Control the position of the oxygen lance
In the entire steelmaking process, the position of the oxygen lance is a very important parameter, which is directly related to the occurrence of decarburization, slagging, heating and splashing in th...
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...
