The following silicone heating sheet manufacturers will introduce the overview of the single-head stainless steel electric heating tube:
The single-head stainless steel electric heating pipe has the characteristics of simple structure, high mechanical strength, high thermal efficiency, stability and reliability, easy installation, and long service life. It is widely applicable to various saltpeter tanks, water tanks, oil tanks, acid-base tanks, and fusible metal melting furnaces , Air heating furnace, drying box, hot stamping and other devices. It is made by placing resistance wire in metal, and filling the gap part with crystalline magnesium oxide powder with good heat resistance and thermal conductivity, and then processed by other processes.
In the late 1990s, due to the widespread use of electric heating tubes in China, the shape of electric heating tubes also appeared a lot. The electric heating tubes for such one-end molds are called single-head heating tubes, and single-head stainless steel electric heating tubes are also called ( Single head) or (bullet) electric heating tube.
Single head stainless steel electric heating tube technical parameters:
1. Input power and power: customized as required
2. Length of electric heating tube: customized as required
3. Diameter of electric heating tube: Φ5.5 ~ Φ30
4. Electric heating pipe: SUS201, SUS304, SUS321, SUS316L, SUS310S, stainless steel waterproof scale coating treatment, titanium pipe
5. Others: working environment, terminal or lead length (conventional: 200mm), whether thread installation (thread size) is required, etc.
Advantages of single head stainless steel electric heating pipe:
1. Small diameter, can be 3-25MM.
2, the length is not limited, can be 20-2000MM.
3, high power, can be achieved (surface area of 20 watts / cm2), even abroad (surface area of 60 watts / cm2).
Single head stainless steel electric heating tube application range:
1. Laboratory heat treatment test.
2. Chemical industry, etc.
3. Mold heating has been accepted by a wide range of customers in modern industrial applications.
4. Heating system in plastic machinery.
5. Pharmaceutical production line.
Performance requirements of single head stainless steel electric heating pipe:
Cold state insulation resistance during factory inspection should not be less than 50MΩ
After the sealing test, the insulation resistance after long-term storage or use should not be reduced to MΩ.
The thermal insulation resistance at the working temperature should not be lower than the calculated value in the formula, but should not be less than 1MΩ
R = “(10-0.015T) / t” × 0.001
R—Thermal insulation resistance MΩ
t—heating length mm
T—working temperature ℃
2. Dielectric strength
The component shall be held for 1 min under the specified test conditions and test voltage without flashover and breakdown
3. Ability to withstand on and off
Components should be able to withstand 2000 on and off tests under specified test conditions without damage
4. Overload capacity
The component should withstand 30 cycles of overload test under the specified test conditions and input power without damage
5. Heat resistance
The component shall withstand 1000 cycles of heat resistance test under the specified test conditions and test voltage without damage.
5. Heating time Under the test voltage, the time for the component to rise from the ambient temperature to the test temperature should not be greater than 15min.
6. Rated power deviation
Under sufficient heating conditions, the deviation of the rated power of the components should not exceed the range specified below;
For components with a rated power of 100W or less: ± 10%.
For components with a rated power greater than 100W, it is + 5% to -10% or 10W, whichever is greater.
7. Leakage current
Cold leakage current and leakage current after water pressure and sealing test should not exceed 0.5mA
The thermal leakage current at the operating temperature should not exceed the calculated value in the formula, but should not exceed 5 mA
I = 1/6 (tT × 0.00001)
I—Thermal leakage current mA
t—heating length mm
T-working temperature ℃
When multiple components are connected in series to the power supply, the leakage current test should be performed using this group of components as a whole.