Heat Treatment Temperature Control Equipment and Heat Treatment Auxiliary Materials

1, Preheating for Shipbuilding and Large-Diameter Cylindrical Structures

In ship hull construction, thick-plate welding is critical, with quality directly impacting vessel safety and service life. For 60–160 mm thick steel plate, preheating and post-weld controlled cooling are essential to ensure weld integrity.

2, C-Type Heating Equipment: An Efficient Preheating Solution for Girth Weld Welding of Large-Diameter Cylinders

In the production process of large - scale equipment such as wind power tower drums and hydropower high - pressure water pipes, the assembly and welding of multiple pipe sections is a  key link in forming the overall structure. The quality of girth weld welding, to a large extent, depends on the effect of pre - welding preheating. For this reason, the C - type heating equipment developed by our company is specially designed for the pre - welding preheating of girth welds of large - diameter cylinders. It perfectly adapts to the rotating operation of the roller stand, realizes the synchronization of preheating and welding, and greatly improves production efficiency.

3, Welding Preheating and PWHT in Thermal Power Generation

Welding heat treatment technology plays a critical role in ensuring the safety, reliability, and service life of equipment in thermal power plants. By establishing appropriate technical specifications and implementing targeted pre-welding preparations, optimized welding parameter selection, strategic post-weld heat treatment (PWHT) methods, and strict control of heat treatment parameters, the quality and performance of welded joints can be effectively enhanced. Post weld heat treatment is an indispensable component of the welding process, as it improves joint performance through microstructural modification.

4, Thermal Dismantling and Assembly

5, Oil and Gas Pipeline Networks

Preheating is critical for weld quality in gas pipeline maintenance, especially during pressurized field operations. Traditional methods struggle with safety efficiency trade-offs. CXD induction heating delivers field-ready performance: efficient, safe, and intelligent.

Product Parameter

Auxiliary Materials

Sheathed thermocouple

A sheathed thermocouple is a high-precision temperature measuring element, composed of thermocouple wires, insulating materials and a metal protective sleeve through stretching processing. Its unique structural design endows it with excellent flexibility, which can be bent and shaped according to actual measurement needs, easily adapting to complex installation environments.
This type of thermocouple has strong vibration resistance and impact resistance, and can work stably under harsh conditions such as high temperature, high pressure and corrosion. It has a wide measurement range, from -200℃ to 1800℃, and is widely used in industrial fields such as metallurgy, chemical industry, electric power, aerospace and so on. In addition, sheathed thermocouples have a fast response speed and small thermal inertia, which can quickly and accurately reflect the temperature change of the measured object, providing reliable data support for temperature monitoring in industrial production processes.

Ceramic heating rope

The ceramic heating rope is a flexible heating element made with high-temperature resistant ceramics as the insulating base material and metal heating wires embedded inside. Its unique structural design endows it with excellent high-temperature resistance, enabling it to work stably within a wide temperature range from -200℃ to 1000℃. With a power range of 1-15KW, it can be customized according to actual requirements.
This heating rope has good flexibility, allowing it to be bent and wound according to the shape of the object to be heated, closely fitting the heating surface to achieve uniform and efficient heat transfer. Meanwhile, it heats up rapidly and has high heat conversion efficiency, which can quickly raise the temperature of the heated object. It is widely used in pre-welding preheating and post-welding heat treatment of irregular objects, variable diameter parts, elbows and other components.

Track-type ceramic heating plates

Track-type ceramic heating plates are high-efficiency heating devices specially designed for pre-welding preheating and post-welding heat treatment, playing a key role in metal welding processes. They use high-temperature resistant ceramics as the core base material, integrate high-resistance alloy heating wires inside, and are encapsulated with flexible high-temperature resistant materials outside, forming a bendable track-like structure that can closely fit various irregular workpiece surfaces, such as pipes, elbows, flanges, etc.
In the pre-welding preheating stage, the heating plate can quickly and evenly raise the temperature of the workpiece's welding area to the range required by the process (usually 150 - 350℃), effectively reducing the temperature gradient during welding and reducing the risk of cracks caused by thermal stress. In the post-welding heat treatment stage, it can precisely control the cooling rate, and promote the homogenization of the weld metal structure through slow heat preservation (such as constant temperature in the range of 250 - 800℃), eliminate residual stress, and improve the mechanical properties of the welded joint.
Its significant advantages include high heating efficiency, temperature control accuracy up to ±5℃, and good insulation performance and mechanical strength, which can withstand vibration, impact and dust environments at welding sites. In terms of specifications, the length of the heating plate ranges from 300mm to 1500mm, and the power of a single piece covers 500W - 15KW. It supports the combination of multiple pieces to adapt to large workpieces, and is widely used in welding processes in fields such as petrochemical pipelines, pressure vessels, and heavy machinery.
styles to meet your needs.

Custom shell-type heater

The custom shell-type heater is an integrated heating device that integrates heating elements, insulation cotton and a metal shell. Its integrated design enables efficient installation of the heater. It can be precisely customized into special shapes such as arcs, sectors and right angles according to the specific form of the workpiece, ensuring a tight fit with the heated surface, thereby significantly improving heat transfer efficiency and temperature uniformity.
This customized design allows the heater to easily meet the heating needs of irregular workpieces. Whether it is curved components, corner parts or irregular contours, it can achieve all-round and dead-angle-free stable heating. At the same time, the built-in insulation cotton effectively reduces heat loss, and together with the protective effect of the high-quality shell, it ensures heating efficiency while extending the service life.
styles to meet your needs. styles to meet your needs.