| Model NO. | Forged Tube |
| OEM | Acceptable |
| Sealing Face | Support Customization |
| Transport Package | Plywood Case or Tray |
| Trademark | JinDingTai |
| Origin | China |
| HS Code | 73261910 |
| Production Capacity | 20000 Tons/Years |
The forging machine is used to exert pressure on the metal blank to produce plastic deformation in order to obtain the processing method of forgings with certain mechanical properties, certain shapes and sizes. Through the continuous beating of the pipe fittings, the original segregation, porosity, porosity, slag inclusion in the ingot is compacted and welded, its organization becomes more compact, and the plastic and mechanical properties of the metal are improved.
Stainless steel, nickel-based alloy and other corrosion-resistant materials can be selected to form a dense oxide layer after forging to resist medium erosion.
The forging process can produce pipes with precise dimensions and smooth surfaces, and the inner diameter deviation is controlled within 0.007-0.010 mm, reducing subsequent processing steps.
The forging ratio and temperature parameters can be adjusted according to the demand to produce pipes of different specifications.
Quality control process:
Make the group a leader in the industry. Over the years, the Group has formed ten core process systems for advanced, stable and efficient forging processing.
1.Design.
According to customer's requirements, we use an advanced production management system to design production process and procurement of raw material.
2.Material Retest.
After the raw materials are entered into the factory, we will mark the furnace number and material grade in time. Simultaneously, we will reinspect chemical composition and mechanical properties to ensure that physical indicators are qualified, and materials are used properly.
3.Cutting Control.
According to the diameter of the products, hacksaw machine or oxygen used for precision cutting and inspect material visual & weight measuring.
4.Temperature Control.
For different steel grades, accuracy control initial heating and terminal temperature.
5.Forging.
Through die forging, free forging or rolling, visual, dimension, weight check and marking for identification.
6.Rouging.
Rough turning is carried out so that the material can better undergo heat treatment.
7.Heat treatment.
Depending on the material properties and customer requirements, special heat treatment is carried out to achieve the highest quality standards and customer requirements.
8. Sampling inspection of forged parts.
There are four levels of forgings, namely Grade I forgings, Grade II forgings, Grade III forgings, and Grade IV forgings.
Grade I forgings are the most basic, using simple molds and processes, with simple shapes and low dimensional accuracy requirements. They are suitable for situations where safety performance is not high, such as non-critical components in ordinary mechanical equipment.
The manufacturing difficulty and shape complexity of Grade II forgings have increased, and more complex molds and processes are used, resulting in higher shape complexity and higher requirements for dimensional accuracy.
Grade III forgings have higher manufacturing requirements and are suitable for more complex shapes and higher performance requirements.
Grade IV forgings are the highest grade and are suitable for applications with high safety requirements, such as critical load-bearing components. When the customer's product is a Grade IV forging, we will sample the product piece by piece according to the standard requirements of NB/T47008-2017 "Carbon and Alloy Steel Forgings for Pressure Equipment". Mechanical performance testing is conducted on samples processed through bulk sampling.
The sampling location required by the standard: For cylindrical and annular forgings, the sample should be taken from the end of the forging, at 1/2 of the wall thickness. Sampling direction: For forgings, it is advisable to take tangential specimens. When tangential specimens cannot be taken, longitudinal or radial specimens should be taken. Sampling quantity: Take one set of samples (one room temperature tensile test and three impact test) from forgings with a heat-treated single piece mass of less than or equal to 3500kg. Two sets of specimens (one room temperature tensile test and three impact test) shall be taken from forgings with a single weight greater than 3500kg after heat treatment, with a distance of 180 ° between the two sets of specimens.
9.Finish Machining.
Through processes such as turning, milling, drilling, grinding, and planning, the product undergoes precise dimensional processing to meet all customer requirements.
10. Final inspection.
Analysis and testing of a series of professional and rigorous indicators such as product size, appearance, smoothness, sealing surface, material, ultrasonic testing, magnetic particle inspection, and penetrant testing.
11.Surface treatment.
To do product marking. cleaning. drying. and then according to customer requirements for surface treatment such as smear nitrous acid, anti-rust oil, anti-rust paint galvanized or spray.
12.Packing and Shipping.
Products are Packed in plywood boxes, pallets, and special protective fasteners are made to meet the requirements for transportation.
Innovation leads to development, scientific and technological achievements of the future. Jindingtai Group has a history of more than30years. An annual supply of 20000 tons of high-end precision forged products of different materials such as stainless steel, alloy steel and carbon steel to the global petrochemical engineering fields, ship- building, power plants, machinery and pipeline engineering industries, etc. Jindingtai products cover flanges, pipe fitting, valve body, balls, axle, shafts, couplings, wheels, rings, discs, barrels and other customized products. As a leading enterprise of forging and processing industry in China, Jindingtai Group constantly adapt to market demand, continuous progress technological reformation and process innovation. Jindingtai group adhering to pursuit of excellence, the spirit of craftsmen for excellence. We continuously optimize the production, management and marketing processes of the enterprise. Make the group a leader in the industry. Craftsmanship of excellent quality and a subtle approach to creation. The company always adheres to the concept of " Create first-class products for the World," through the tireless efforts and strict monitoring, " JINDINGTAI" got positive assessment. We awarded ISO9001:2015 quality certificate, German VD TUV PED, AD2000, Russian GOST -R, GAS-PROM EAC, TS Certificates, Environmental Management System Certificate, Occupational Health and Safety Management System Certificate. At the moment, the company has branches in such cities as Moscow-Russia, Taiyuan-China, Batam Indonesia, Hanover Germany, Houston -USA. In addition, we have representative agreements with many other companies in the World. Our products are supplied to such countries as USA, Germany, Saudi Arabia, Italy, Brazil, Russia, South Korea, Indonesia, Iran, Thailand and other 36 countries around the World. Build on Past Achievements and Open up the Future, the staff of " JINDINGTAI" sincerely cooperate with all our partners from all countries, calling for pioneering and innovation, to create a healthy, stable and strategic partnership.
