Weld Fabricated Radiant Tubes by Inconel601

• Condition: New
• Certification: CE, RoHS, GS, ISO9001
• Standard: DIN, ASTM, GB, ANSI
• Customized: Customized
• Material: Alloy
• Application: Cgl (Continuous Hot DIP Galvanizing Line),Plating
• Model NO.: Radiant tubes
• Surface Roughness: Ra6.3
• Machining Tolerance: +/-0.01mm
• Transport Package: Wooden Case
• Specification: Outer diameter: 55mm-2000mm or customized
• Trademark: HEXIN
• Origin: China
• HS Code: 85149090
• Production Capacity: 5000pieces/Year

Product Description

Qingdao Hexin Machinery Co., Ltd. are professional Centrifugal Casting Sink Roll for Continue Galvanizing Line, Centrifugal Casting Sink Rolls, Centrifugal Casting Rolls, Stabilizer rolls, Furnace rolls for plate heating furnace,  Rolls for CAL, Water cooled rolls, Coated rolls manufacturer from China.

Qingdao Hexin Machinery Co., Ltd. produces furnace bottom rolls,which it adopt the centrifugal casting, precisely casting technology on journal bell mouth, shaft head with forging process. It can be transported with using professional wood packaging to the packing, its excellent quality has won high praise at home and abroad.

wet rolls for tunnel furnaces
HEXIN water cooled rolls have been performing well in tunnel furnaces throughout the world ,which are made by high nickel alloy tires welded to steel shaft, including a castable refractory or without the refractory.
The wet rolls perform well in atmospheres over 1300 degrees  C. 
The nickel alloy tires are made from heat reistant stainless steel like 2.4879, by lost wax invesment casting method with special heat treatment.
We also supply customized alloy tires or ring to customers for installation by themself.
We also produce other castigns for CSP plants, like dry rolls for tunnel furnaces, riders for walking beam or pusher type reheating furnaces in nickel and cobalt based alloys, looper rolls, run out table rolls, wrapper rolls.
Other components for plate mill and tube mills like tube mill pierce points,plate mill heat treat hardening furnace rolls, rider tiles, hearth skids, buttons, drop-out skids,recuperator boxes, recuperator tubes

U-shaped radiant tube
The structure of U-shaped radiant tube: it is mainly composed of two sections of centrifugal casting main tube, 180° elbow, flange and fixed plate. It is installed in the furnace in conjunction with the burner burner and other structures. After the burner is ignited, it burns in the tube, and the exhaust gas generated by the combustion is discharged from the other end of the tube. High-efficiency radiant tubes often have waste heat recovery devices, which can not only improve the temperature distribution on the surface of the radiant tube wall, but also improve thermal efficiency.
The key component of the U-shaped radiant tube is the tube body, which radiates the heat released by fuel combustion to the heated material. Because the surface of the tube body is in direct contact with the combustion flame and high-temperature flue gas, the working environment is harsh. For the radiant tube of metallic materials, the material will fail due to local burning and oxidation for a long time; if along the length of the tube body There is a large temperature difference, and the pipe body needs to bear a large thermal stress, which will directly affect the length of the life of the pipe body; coupled with the impact of the airflow during combustion, it will also produce a certain vibration. Therefore, the material of the radiant tube must meet the following conditions: 1) high temperature resistance; 2) high surface blackness; 3) high thermal conductivity; 4) high structural strength and good air tightness; Under the action of working temperature and its own load, it has good oxidation resistance and can withstand high enough high temperature creep and failure strength; 6) small thermal expansion coefficient; 7) low cost.
Most of the radiant tubes produced by Qingdao Yuanding Group are made of heat-resistant steel, and the temperature range is about 900-1000°C. Its processing method is usually made by rolling, extruding steel pipe or centrifugal casting. Theoretically, the maximum service temperature of various heat-resistant steels will change with the change of service conditions and controllable atmosphere. In the actual production process, a reasonable radiant tube material should be selected in combination with the kiln temperature, furnace atmosphere, and the type of material to be heated.
 

Item	Weld fabricated Radiant tubes by Inconel601
Process	Centrifugal/spun casting method for roll body, precision casting of assembly shaft head.
Material	316L,316,HK,HT,HU,HP,HH,ZG40Cr25Ni20Si2,ZG14Ni32Cr20Nb,ZG45Ni48Cr28W5Si2.
Application	The heat treatment furnace roll are usually used for normalizing furnace and hardening furnace, under the hydrogen nitrogen protective environment, Furnace temperature is about 900 ºC. CGL (Continuous hot dip galvanizing line),Plating aluminizing line, Plating silicon line.
Specifications	Outer diameter: 55mm-2000mm Length: as per your request
Test	Chemical analysis by spectrometer for each heat,eddy current test,pressure test ,thickness test , PT 100%(liquid penetrant test),VI(visual inspect)100%,dimensional check.
Products	Sink rolls Stabilizer rolls Furnace rolls for plate heating furnace Rolls for CAL Water cooled rolls Coated rolls

About us

Qingdao Hexin Machinery Co., Ltd. is professional for manufacturing, sale and research of high temperature alloy centrifugal cast tube, Heat resistant steel precision castings and sand mold casting.
The main products are: Ethylene cracking furnace furnace tube, reformer furnace tube, all kinds of casting alloy elbow, casting tube sheet, hook, hanger, bracket and other heat resistant casting products. Furnace rollers, radiant tubes, sink roll, stabilizing roll, support arm and sleeve and other heat resistant alloy used for continuous galvanizing line(continuous annealing line), all kinds of heat treatment fixtures used for heating processing equipment, like tray, basket, fan and so on. Widely used for famous brand heat treatment equipment, such as IPSEN, AICHELIN, FONTON, etc.
We committed to the strict quality control and strictly implement ISO9000 series quality management system, Ensure the castings in each process of each station "zero defect" production, Quality has won the acceptance of customers at home and abroad.
Welcome to view our website: hexinmachineryqd.en.made-in-china.com