Power: 90V 6KW

Product certification: ISO9001, CE, RoHS, SGS

Maximum temperature resistance: 1200 degree

The inner core of the electric heating radiation tube is composed of resistance wires and ceramic support brackets welded at the end of the U-shaped axial arrangement. There is no shielding between the inner core and the outer protective sleeve, and the heat dissipation is good. The electric heating radiation tube with a rated working temperature of 1000 degrees Celsius is made of Cr20Ni80 or 0Cr21Al6Nb resistance wire, and the surface working temperature can reach 1200 degrees Celsius. The maximum working temperature of the electric heating radiation tube using this material can reach 1000 degrees Celsius, and the support frame is made of high aluminum ceramic parts. The outer protective sleeve is a cold-drawn seamless thin-walled heat-resistant steel pipe, made of 1Cr25Ni20Si2 or 1Cr25Ni35Si2. The material has good high-temperature oxidation resistance, high high-temperature creep strength, and certain anti carburizing performance. The design and material selection of this radiation tube have a high safety factor.

The electric heating radiation tube with a rated working temperature of 1200 degrees, the material of the resistance wire is 0Cr27Al7Mo2, and the surface working temperature can reach 1400 degrees. The maximum short-term working temperature of the electric heating radiation tube using this material is 1250 degrees, and the support frame is made of steel jade porcelain. The outer protective sleeve is a cold-drawn seamless thin-walled heat-resistant steel pipe made of Fe Ni Cr Al Re alloy. This material has ultra-high oxidation resistance and can work for a long time at 1300 degrees Celsius in an oxidizing atmosphere, while short-term oxidation resistance is at 1360 degrees Celsius. Suitable for working in high temperature, low oxygen partial pressure, and environments containing S and C.

The electric heating radiation tubes developed and produced by our factory not only serve as supporting equipment for various domestic heat treatment equipment manufacturers, but also can be used to research, design, and manufacture heaters for non-standard products. According to the usage situation, they can be divided into: heat-resistant steel seamless tubes, plate ring welded tubes, centrifugal cast tubes, and non-metallic sleeves.

(1) Basic data required for calculation

(2) Based on basic data and combined with the working conditions of the electric heating element, determine the electric heating alloy to be used

(3) Based on the determined electric heating alloy license plate used and referring to known data, the resistance temperature correction coefficient Ct can be obtained by referring to the attached table.

(4) Calculate the total resistance of the material=U2 Ct/P

(5) Calculate the material resistance Rm=R/L per meter, estimate the material diameter D based on the properties of the electric heating alloy material, and then calculate the total area FO of the electric heating element.

(6) By ω= Table of Materials Obtained from P/FO