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Stainless Steel Usage Guide

  Stainless Steel Usage Guide Cutting and Stamping Techniques : Higher pressure is needed for stamping and shearing stainless steel compared to general materials. Accurate knife gaps prevent work hardening. Best Methods : Plasma or laser cutting is recommended. If gas or arc cutting is used, grind the heat-affected zone and perform heat treatment if necessary. Bending Thin Plates : Can be bent to 180 degrees. The radius should be twice the plate thickness to reduce surface cracks. Thick Plates : When bending along the rolling direction, use a radius of 2 times the thickness. For bending perpendicular to the rolling direction, use a radius of 4 times the thickness. Welding : Grind the welding area surface to prevent processing cracks. Drawing Lubrication : Use pressure-resistant and heat-resistant lubricating oil to manage frictional heat during deep processing. Remove oil from the surface after forming. Welding Preparation : Remove rust, oil, moisture, paint, and other contaminants...

Aluminum-Lithium Alloy

  Aluminum-Lithium Alloy: A New Aerospace Material Overview Aluminum-lithium alloy is a highly competitive material in modern aerospace design with vast application potential. Development Stages First Stage: Initial Phase Early research did not recognize lithium’s crucial role. First-generation alloys had poor heat resistance, plasticity, and toughness. High notch sensitivity prevented their use in spacecraft. Second Stage: Rapid Development Second-generation alloys faced issues like severe anisotropy and insufficient plasticity. Toughness decreased after thermal exposure, limiting their large-scale application. Third Stage: Large-Scale Application Third-generation alloys showed weak anisotropy, good weldability, and strong corrosion resistance. These alloys were widely used in spacecraft manufacturing. Fourth Stage: High-Quality Development Currently, research focuses on high-quality aluminum-lithium alloys. New materials with improved performance are now used in next-generation s...

Improving Sheet Metal Processing

  Improving Sheet Metal Processing Accuracy and Reducing Damage Understanding Sheet Metal Processing Sheet metal parts, often referred to as thin plate hardware, are created through stamping, bending, and stretching processes. The key characteristic is that their thickness remains unchanged during processing. This method is used to produce various products, such as ventilation pipes, chimneys, funnels, and iron barrels, primarily involving shearing, bending, and welding. Reducing Damage in Sheet Metal Processing Manual Tool Use Preventing Design Issues : To strengthen work and improve mechanization, manual tools like pliers and tweezers are used to prevent issues caused by poor mold design. Mold Protection Expanding Dangerous Range : The mold’s dangerous range can be expanded without compromising its strength. Manual feeding can be used to enhance the process. Using Manual Methods : Despite advances, many manufacturers still rely on manual methods for sheet metal processing. Howeve...

300 Series Heat Resistant Stainless Steel Plates

  310/310S Alloy (UNS S31000/S31008) This austenitic stainless steel alloy is primarily used in high-temperature environments. Its high chromium and nickel content ensures good corrosion and oxidation resistance, providing higher strength at room temperature compared to the austenitic 304 alloy. General Properties 309/309S and 310/310S Alloys : Commonly used in high-temperature environments, offering excellent corrosion and oxidation resistance with higher strength than the 304 alloy. Applications Heat Treatment Industry : Used in furnace parts like conveyor belts, rollers, furnace heads, refractory pads, and pipe hangers due to high-temperature strength, creep resistance, and environmental corrosion resistance. Chemical Processing Industry : Handles hot concentrated acids, ammonia, and disulfides. Food Processing Industry : Used with hot acetic and citric acids. Resistance to Aqueous Solutions Corrosion Resistance : High chromium and nickel content provide some resistance to aqueo...

Features of High Chromium Bimetal Cladding Plate

  Features of High Chromium Bimetal Cladding Plate High chromium bimetal cladding composite wear-resistant steel plate is the current mainstream in wear-resistant steel. Our company produces these steel plates with the following specifications: Material Composition : Low carbon steel substrate with a wear-resistant alloy layer. Common Specifications Sizes : 5+3, 6+4, 6+6, 8+3, 8+4, 8+5, 8+6, 8+8, 10+6, 10+9, 10+10, 12+12 (custom sizes available upon request). Plate Dimensions Width : 1500x3500mm (custom dimensions available upon request). Major Features Alloy Composition : Contains 5.0% carbon (C) and 27-30% chromium (Cr). Martensitic matrix with over 60% Cr7C3 type carbides. Hardness : Macro hardness of the alloy layer is HRC57-65. Carbide hardness is HV1400-1800. Wear Resistance : 20-25 times more wear-resistant than low carbon steel. 8-12 times more wear-resistant than stainless steel and high manganese steel. Over 1.5 times more wear-resistant than general high carbon high chro...

Composite Wear-Resistant Materials

  High Chromium Cast Iron Composite Wear-Resistant Materials Classic Practical Occasions Construction and Earth-Moving Machinery Shovel teeth Excavator and loader side panels Easily worn parts Crushers Filter plates Forehead plates Outlet chutes Swinging strips Crushing chamber linings Crusher gum Roller rings Conveying Equipment Hoppers Conveyor plates Conveying bends Sugar Making Equipment Screen bars Toothed disc ends Ramps Cabinet linings Other Machinery Stone arm racks Drum linings Recycling shovels Scoop wheel sheaths Drilling machines Roller bushings High Chromium Cast Iron Bimetallic Composite Wear-Resistant Pipes Classic Practical Occasions Dredger conveying pipelines Mining field conveying pipelines Feed and discharge conveying pipelines High Chromium Cast Iron Composite Surfacing Plate Classic Practical Occasions Mining Industry Excavator and loader linings Transport truck linings Conveying pipeline elbows Mixer linings and blades Crusher mortar wall linings Cement Indus...

Production and Supply of Iron and Steel Materials

  Red Steel丨Production and Supply of Iron and Steel Materials in Anti-Japanese Base Areas Introduction During the Anti-Japanese War, the production and supply of iron and steel materials were crucial for the military efforts in the base areas led by the Communist Party of China. This article discusses the significant contributions made in the anti-Japanese base areas and liberated regions, focusing on the efforts led by the Eighth Route Army and the New Fourth Army. Production in Anti-Japanese Base Areas Eighth Route Army Efforts The Eighth Route Army established base areas primarily in the Shanxi-Hebei-Shandong-Henan, Shanxi-Chahar-Hebei, and Shanxi-Suiyuan regions. They relied on self-reliance to produce iron and steel using small earthen blast furnaces and crucible furnaces. This indigenous production method, despite its limitations, contributed significantly to the war effort. Key Factories Wuxiang County Self-Defense Force Iron Factory : Established in 1937 by returning worker...