Casting Railroad Steel Wheels , ODM Mine Car Wheels 150-560HB Hardness

Casting Railroad Steel Wheels , ODM Mine Car Wheels 150-560HB Hardness

Casting or Forging Crane Rail Wheels, Railway Parts Railroad Wheel Stainless SteelRail Wheel Train Wheels mainly used for RRV, Road-rail dual-use vehicles refer to special vehicles that can run on railway tracks as well as on general roads and even in the field. also called RRV. It was mainly used in the military in the early days. Hyundai mainly undertakes emergency tasks such as maintenance and rescue of railway lines and along the lines. Road-rail dual-use vehicles are required to be able to switch between roads and railways quickly and easily. It is usually realized by the hydraulic lane-changing slewing device on the chassis and the railway traveling guide wheel device that can be raised and lowered at any time. With the guide wheel device, the general rubber tire wheels can drive straight along the rail. Because this kind of vehicle requires a certain traction and carrying capacity, it can play a unique role in the event that the railway line is interrupted or blocked due to a disaster. Dedicated road-rail vehicles include: electric traction section catenary repair vehicles, excavators used for mountain railway repairs, emergency tractors, generator vehicles, fire trucks, fast bridge vehicles, etc.

What are the differences between forgings and castings? Forging and casting are more common processing techniques today, and the cost of casting flanges is low; precision castings can be obtained by special processes, and their surfaces have an ideal finish without processing; castings are simpler to form than forging. Flanges are cheap. Below, Carrian Forging will introduce the difference between forgings and castings.
Forging flanges use forging equipment to forge bars. Generally, more complex workpieces cannot be forged and require a large amount of processing. However, the structure of forging flanges is relatively dense, and internal defects are not easy to appear. Therefore, It is widely used in the processing of parts with high requirements, such as valve seat, valve core, valve stem, etc. In high pressure and strong corrosion alloy valves, forging valve bodies are also widely used.

Detailed specification of Casting Railroad Steel Wheels , ODM Mine Car Wheels 150-560HB Hardness:

Front View of Casting Railroad Steel Wheels , ODM Mine Car Wheels 150-560HB Hardness:

Almost all train wheels have a curved projection, a flange, on one side to keep the wheels, and hence the train, running on the rails when the limits or tests of alignment are reached.

Side View of Casting Railroad Steel Wheels , ODM Mine Car Wheels 150-560HB Hardness:

The running surface of most is concave, serving as the primary means of keeping the train's motion aligned with the track while in others it is flat such that the flanges are essential to keep the train on the rail track.

Package of Casting Railroad Steel Wheels , ODM Mine Car Wheels 150-560HB Hardness:Wheels are packed by iron pallets with rings.

Rail steel wheel -Casting Railroad Steel Wheels , ODM Mine Car Wheels 150-560HB Hardnesss:

• 1. Material: cast steel or cast iron;

      Carbon steel:C45, C50, C55, C60, 4330, C35, 65Mn

      Alloy steel:4140, 42CrMo, 40CrNiMo, 4340,34CrNiMo6

• 2. Constitute: two wheels, one axle, four bearings, and other parts,oem wheels;
• 3. Loading capacity: 1-300 tons, can be customized.
• 4. The type of the wheels: single flange wheel, double flange wheel, hollow wheel sets and solid wheel sets;
• 5. The diameter of the wheels: 300mm, 350mm, 400mm, 450mm;500mm; 900mm, etc.
• 6) Heat treatment: normalizing, Q&T ,Surface and rim quenching with depth: 5-20mm
  7) Measuring & testing equipment:Projecting profile, roughness tester, hardness tester, concentricity tester ect, UT ,MT
  8)Size:Customized designs are available.
  9)Inspection:In-house and the third party.

Strength of Casting or Forging Crane Rail Wheels, Railway Parts Railroad Wheel Stainless SteelRail Wheel Train Wheels:

1. Forging production, longer lifespan, for smaller quantity, free forging, for big quantity, precision forging with mould

2. Diameter: 0-1450mm, 6",8",10",12",14",16",20",24",28",30",34",36",40",42",etc

3.100% inspection before delivery

Usage of Casting or Forging Crane Rail Wheels, Railway Parts Railroad Wheel Stainless SteelRail Wheel Train Wheels:

Train, railcars, light rail, street car, metro, freight car, railway wagon for mining, rail trucks, ballast rail cars, Hy-rail hirail cars, etc

The Production Railway Wheels Process

1. Wheels Steel Melting 2. Round Billet Sawing Cutting 3. Heating 4. Phosphorus 5. Stamping Forming 6. Rolling 7. Bending Punch 8. Hot Stamping 9. Laser Measurement 10. Drop Stack 11. Roughing 12.Hardening 13.Tempering 14. Sampling 15. Pre-processing 16. Finishing 16. The Cold Print 17. Static Equilibrium 18. The Cold Print 19. Hardness Testing 20. Ultrasonic Testing 21. Magnetic Particle Testing 22. Shot Peening 23. Painting Packaging

Main Testing and Inspection Device

Despite the tremendous advances in casting technology and the use of computer technology to assist in optimizing the structural design and fluid geometry of the casting process, it is still extremely difficult to achieve the X-ray/MT or PT quality requirements of Class 1 or 2 acceptance criteria , and these are the standards required in the harsh environments of nuclear power plants, thermal power plants or petrochemical industries. Welding improvements are therefore required. However, after welding repair, the overall quality and reliability of the casting valve becomes difficult to guarantee. Sometimes all these problems are left in the cast welded metal frame. Test rods are usually for each temperature, but their analysis can be indeterminate. Even if the round test rods show acceptable chemical and physical properties, the gradual itself may still have subtle internal defects that impair strength or corrosion resistance.

Some other disadvantages of casting valves or flange interiors are the clear cracks and hot tears that occur during solidification due to a combination of stress concentration caused by uneven shrinkage and low strength of the metal at temperatures close to the melting point. Lower casting temperatures can form cold scars, and accumulation of sand or slag from molten metal can cause stains. Poor casting operations can also cause other defects.

The improvement of castings to meet the requirements of X-ray quality depends on the grinding of defective parts, welding repair, heat treatment and repeated testing and inspection. Even in this case, the seat and gasket faces or butt-welded ends of the valve may show fine line cracks that need to be re-welded and machined.

The casting process builds a refined grain structure and improves the physical properties of the metal. In real-world use of the component, a proper design enables particle flow in the direction of the main pressure.
Forgings need to be consistent from piece to piece, without any porosity, excess space, inclusions or other imperfections. This method produces components with a high strength-to-weight ratio.

Advantages of forgings: The advantages of forgings are stretchable length, retractable cross-section; retractable length, extensible cross-section; changeable length, changeable cross-section. The types of forgings are: free forging/hand forging, hot die forging/precision forging, upset forging, roll forging and die forging.

Why choose forgings? Compared with castings, the body of forging valves has a more uniform structure, better density, better strength integrity, better dimensional characteristics, and smaller dimensional errors. Oriented construction (pipeline) provides higher performance than castings throughout strength and stress.

(1) High strength

Hot forging promotes crystallization and grain refinement, allowing the material to achieve the greatest possible strength and consistency with minimal piece-to-piece variation. Particle flow precisely follows the contour of the valve body, and these continuous streamlines help reduce the incidence of fatigue or common failures.

(2) Reliability

The forgingability that can meet the requirements of the design structure has always been one of the most important advantages of forgings, and to some extent, it ranks first in the above characteristics
(3) Structural integrity

Forging eliminates internal defects and produces a coherent metallographic structure that guarantees excellent performance. Where stress and intracrystalline corrosion are serious issues, forgings are guaranteed to provide long service life and trouble-free service.

(4) Consistency

The dimensional consistency of closed-die forging results in complete control of critical wall thicknesses, avoiding defects caused by core displacement in the casting process, and ensuring no internal defects through high-quality, non-separating ingots and impact force from 10,000 to 30,000-ton presses and consistent metallographic structure.

What are the differences between forgings and castings? Forgings have better performance than gradually, and have the characteristics of high strength, good reliability, good structural integrity, consistency, etc. Forgings need to be consistent for each piece, without any porosity, Extra space, inclusions or other imperfections. This method produces components with a high strength-to-weight ratio.

What is the difference between the detection methods of forgings and castings?

The difference is introduced, forgings and castings are quite different, their detection methods are also different, and the requirements are also different. Usually, the quality level of forgings is high, and castings are relatively different from forgings. The requirements will be much lower, so the evaluation criteria for testing are different. Below, Shanxi Jianing Forging will introduce the difference between forgings and gradual testing methods?

The manufacturing process of castings and forgings is different, resulting in very different internal structures of these two types of workpieces, so the detection methods are also very different. The advantages of forgings are extensible length, retractable cross section; retractable length, extensible cross section; changeable length, changeable cross section. The types of forgings are: free forging/hand forging, hot die forging/precision forging, upset forging, roll forging and die forging. A forging is an object to which a metal is subjected to pressure to shape the desired shape or suitable compressive force through plastic deformation. This force is typically achieved through the use of a hammer or pressure. The casting process builds a refined grain structure and improves the physical properties of the metal. In real-world use of the component, a proper design enables particle flow in the direction of the main pressure.

Forgings need to be consistent from piece to piece, without any porosity, excess space, inclusions or other imperfections. This method produces components with a high strength-to-weight ratio.

Castings are metal forming objects obtained by various casting methods, that is, the smelted liquid metal is injected into the pre-prepared casting mold by pouring, injection, suction or other casting methods, and after cooling, after grinding and other subsequent processing methods. , the resulting object of certain shape, size and properties.

Whether it is a casting or a forging, non-destructive testing of the workpiece is necessary to ensure the quality of the product. However, due to the different internal structures of the two types of workpieces, the testing methods and testing precautions are also different. The difference between ultrasonic testing in the casting and forging testing process is explained below.

Our Equipments:

The total production area of Kingrail Parts is 55, 000 square meters, including a 40, 000 square meter factory and 10, 000 square meter warehouse. The production mill covers over 100, 000 square meters equipped with steel rolling and casting lines, rail elastic clip lines, fish plate lines, spike & Bolt lines, heating treatment line and surface anticorrosion treatment line as well as electro galvanizing, hot galvanizing and Dacromet processing lines. Our technical force is strong, the inspection method is complete, we can strictly implement the national railway standards for production. rockwell hardness tester Services we can provide:
 

1. Our railway products comply with AREMA, DIN, BS, UIC, GOST, NF, JIS, GB and other standards.

2. We can customize railway fasteners products according to your samples or drawings.

3.Fast , Convinient Services with High quality products but competitive price.

4.Complete quality inspection procedure to every batch of shipment before delivery.

5.After-service can be warranty last to 3 years of any questions from our customers.

Our aim is to serve customers by providing the the most optimized solution according to the needs of production and meet the satisfaction.

Railway parts products we can provide:

1, Rail Spike Series: Rail Screw Spike, rail Dog Spike, rail Elastic Spike etc.

2, Track Bolt series: Track Bolt, Segment Bolt, Metro Bolt, Tunnel Bolt, Hex Bolt, Square Bolt, Turnout Bolt, Fishtail Bolt, T bolt etc

3, Rail Clip series: Nabla rail Clip, Elastic rail Clip, SKL rail Tension Clamp, O rail Clip, Gauge Lock Clip etc

4, Steel Rails series: Railway rails, Crane Rails, Mining Rails, Over the head Rails, etc

5, Steel rail wheels series: Train Wheels, Crane Wheels, Hi-rail vehicle wheels, etc

6, Other materials and accessories: Rail Gauge Insulator, rail rubber Pad, rail Fish plate, Nut, rail Plastic Dowel, rail Tie plate, Spring Washer, Flat Washer, Cast Iron Insert, Anti Creeper, rail Gauge Rod etc.

Why choose us:

1. The company is in a leading position in the industry and has obtained SGS-ISO9001: 2008 quality system certification and CRCC certification. Quality is guaranteed.

2. We have 8 professional sales staff and more than 60 professional engineers. Can provide professional and fast suggestions and quotations for your railway customized products

3. Ma′anshan is a port city. We can provide you with faster shipping services

4.20 years of production and sales experience. Deal with all kinds of after-sales problems for you in time.