Supply of single-head electric heating pipe with metal hose

型号：

齐全

规格：

定做

功率：

定制

1. Introduction to single-head electric heating tube with metal hose:
Single-head electric heating tube, also called single-ended electric heating tube and cartridge electric heating tube (r), is a type of electric heating tube (tubular electric heating element). China's electric heating industry has a model with a long-standing title:. In the late 1990s, due to the widespread use of electric heating pipes in China, many electric heating pipes for molds with one end out of the wire were called single-head electric heating pipes or single-ended electric heating pipes in southern China. In foreign countries, it is called a cartridge heater, which is also a vivid name because the cartridge shell is cylindrical and one end is blocked. In China, it is called a single-head electric heating tube, which is a coincidence.
2. Application scope of single-head electric heating pipe with metal hose
Mold heating has been accepted by a wide range of customers in modern industrial applications.
, in plastic machinery heating system.
, pharmaceutical production line.
, Laboratory heat treatment test.
, chemical industry, etc.
3. Advantages of single-head electric heating pipe with metal hose
Small diameter can achieve -.
, the length is not limited and can be -.
The high power is - times that of normal electric heating tubes (surface area watts/square centimeter) and can even be achieved in foreign countries (surface area watts/square centimeter).
It has the characteristics of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, easy installation, long service life, no pollution, low price, etc. It also saves electric energy, is safe to use, can be bent into various shapes, is lightweight, and is easy to disassemble and assemble.
4. Performance requirements for single-head electric heating pipes with metal hoses
, 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
, Rated power deviation: Under the condition of sufficient heating, the deviation of the rated power of the component should not exceed the following specified range;
. For components with rated power less than or equal to: &;%.
b. For components whose rated power is greater than +%~-% or the larger of the two.
, leakage current:
, cold leakage current and leakage current after water pressure and sealing test should not exceed.
b. Hot leakage current at operating temperature should not exceed in the formula Calculated value but the maximum does not exceed
/(&;.)
&;Thermal leakage current
&;Heating length
- Operating temperature ℃
, multiple components When connected in series to the power supply, the leakage current test should be conducted on this group of components as a whole.
, Insulation resistance
During factory inspection, the cold insulation resistance should not be less than &;
b. The insulation resistance after long-term storage or use after sealing test should not be less than &;
. The thermal insulation resistance at operating temperature should not be lower than the calculated value in the formula but the minimum should not be less than &;
R
『(-.)/』&;.
R&; Thermal insulation resistance &;
&;Heating length
&;Operating temperature ℃
, Insulation withstand voltage strength: The component should be maintained under the specified test conditions and test voltage without flashover and Breakdown phenomenon
, Ability to withstand power on and off: the component should be able to undergo multiple power on and off tests under the specified test conditions without damage
, Overload capability: The component should be able to withstand power on and off under the specified test conditions and input It should withstand multiple cycle overload tests under power without damage
, Heat resistance: The components should withstand multiple cycle heat resistance tests without damage under the specified test conditions and test voltages