Advanced and reasonable structural design, functional components and components with advanced level of rapid temperature change test chamber set a variety of models in one of the functional design, the use of touch-type digital instrument, with programming, curve display, PID self-tuning, fault display and other functions. One-time solution to your needs, to meet the diversity and variability of different products in different tests, improve machine utilization and work efficiency.
The test chamber is suitable for the cold resistance test of electronic and electrical products and parts and components, and the adaptability test under the conditions of rapid temperature change or gradual change. It is particularly suitable for environmental stress screening tests of electrical and electronic products. The rapid temperature change test box shall be operated and maintained by a special person. The user shall establish a device usage file to facilitate the maintenance of the equipment.
The rapid temperature change test chamber can provide a more rigorous test environment, shorten the test time and reduce the test cost for different electronic components, temperature conditions encountered in the actual use of the environment, change in the range of ambient temperature differences and rapid temperature changes, but must pay attention to It may have an additional impact on material testing and result in a non-use destruction test.
In the high temperature test of the test chamber, if the temperature does not reach the test temperature, the electrical system can be checked and the faults can be eliminated one by one. If the temperature rises very slowly, it is necessary to look at the wind circulation system and see if the adjustment baffle of the wind circulation is normally open. Conversely, check whether the motor operation of the wind circulation is normal. If the temperature rises directly, over-temperature protection, then the controller fails and the control instrument must be replaced. If the temperature overshoots badly, then you need to set the PID setting parameters. Use the file to record the start and end time of each operation of the equipment and the type of test and the ambient temperature. When the equipment fails, the rapid temperature change test chamber should describe the fault phenomenon as detailed as possible, and the contents of the equipment maintenance and repair should also be exhausted. It may be recorded in detail that the interior and surroundings of the test chamber should be kept clean.
Can adapt to long-term, stable, safe and reliable production needs. The equipment is mainly aimed at adaptability tests of electricians, electronic products, and their original devices, and other materials stored, transported, and used in high-temperature, low-temperature, rapidly changing environments. The test equipment is mainly used to test the physical and other relevant characteristics of the product under the conditions of low temperature, high temperature and conditions according to the requirements of the national standard or the user's own requirements. After testing, the product performance is judged by testing. Whether it can still meet the predetermined requirements for product design, improvement, identification and factory inspection.
The shell of the rapid temperature change test box is made of cold-rolled steel plate, and the surface is sprayed with plastic, which is beautiful and durable. The inner chamber uses a stainless steel plate and the inner surface is flat and clean. The right side of the studio is equipped with circulating devices, heaters, cooling evaporators and other components. At the top is equipped with a pair of blower motor, so that the hot and cold air is circulated into and out of the studio to ensure the temperature requirements of the studio.

Weld Materials

1.Welding materials

In Welding, substances called filler materials or consumables are used. As the name implies, these substances provide filler or a body of molten materials that provides a strong bond to be formed between the base metals used. Most welding processes will also require some form of shielding to protect both the main components and filler from being oxidized during the process.


The type of welding materials used during welding depends on the nature of the job intended. Electrodes draw the necessary energy in order to perform welding applications. Luoyang Golden Egret Company has any kind of welding materials include CTC Welding Rod /rope, SCTC welding rod/rope, TC electronic welding rod, Ni-based welding rod, flux-cored Welding Wires, solid welding wires and etc.

Welding can be applied in different kinds of industries such as building and construction, oil and gas, marine, power generation, steel, mine tools, automobile, transportation and etc.


2. Welding rod

1)Cast tungsten carbide based tubular rod

The hard phase of the rod is cast tungsten carbide which leads to higher hardness and better wear-resistance.

Wear resistance: the wear resistance is 6-7 times better than others. Tested by ASTM G65

Mainly used for Mining machinery, Geological tools, Petroleum drilling tools etc, by Oxy-Acetylene with weak carburizing flame.

Ni Based Welding Rod


Product recommendation:

GT1103 (CTC, 60-80 mesh),

GT1103-1(CTC, 20-30 um),

GT1103-2(CTC, 40-60 um)

2)The hard phase of tube rod is carbide pellets which leads to higher impact resistance and better wear resistance than CTC cloase rod.

Wear resistance: the wear resistance is 6-7 times better than others. Tested by ASTM G65 wear test.

Mainly used for mining machinery. Geological tools etc; by Oxy-acetylene with weak carburizing flame.

Product recommendation:

GT2102 (Cemented carbide grit, 30-60mesh)

GT2102-2(Cemented carbide grit, 30-40mesh)

GT2102-3(Cemented carbide grit, 40-60mesh)

3)Tube rod is composited by Cemented carbide pellets, Spherical CTC and CTC. The layer has higher impact resistance, better wear resistance and good fluidity than other rods.

Wear resistance: the wear resistance is 6-7 times better than others. Tested by ASTM G65.

Mainly used for oil method drill bits, such as Tri-cone bit, Steel tooth bit, PDC bit, etc. By Oxy-Acetylene with weak carburizing flame.

Product recommendation:

GT3302 (carbide pellets, 20-40mesh)

GT3302-1(carbide pellets, 14-40um)

4)The hard phase of the rod is monocrystal WC, the welding layer has a higher wear resistance and better impact resistance.

The wear resistance is 6-7 times better than others, tested by ASTM G65 method.

Mainly used for the repair and strength for oil drills bits, such as PDC bit diameter holding by Oxy-Acetylene with weak carburizing flame.

Product recommendation:

GT4104 (Monocrystal WC, 80-200mesh)

3. Welding Rope

Made form mixture of CTC and self-fluxing nickel alloy covering on nickel wire. The CTC is in spherical or irregular with good wear resistance; the nickel alloy is in spherical or nearly spherical shape with good wettability and erosion resistance and better corrosion resistance than tubular rod.

Recommend to use Petroleum drilling tools, Concrete mixing blade, Mud pump, Coal sluice, Coal drill pipe, Tunnel drilling machinery etc.

By Oxy-Acetylene Welding with weak carburizing flame.

5mm Welding Rope

Product recommendation:

GS110450N (CTC, 4mm, HRC 47-55)

GS110550N (CTC, 5mm, HRC 47-55)

GS110650N (CTC, 6mm, HRC 47-55)

4. Welding Bar

The rod is sintered by CTC and Ni-based powders. The CTC(Cast Tungsten Carbide) is in irregular or spherical shape with better wear resistance and the nickel alloy is in spherical or nearly spherical shape and has good wettability with cast tungsten carbide. The cladding layer has a higher impact resistance and better wear resistance.

Its wear resistance and corrosion resistance is between tube rod and flexible rope.

Mainly used on the Steel PDC bit, Concrete mixer blade, Mud pump, Miner chute, Miner drill stem and Mechanical parts of Tunnel rock drill machine etc.

Welded by Oxy-Acetylene with weak carburizing flame.

Product recommendation:

GD4025253-3(CTC, SCTC, 4*600/6*600)

GD4030303-3(CTC, SCTC, 4*600/6*600)

5. Welding wire

Intensified molybdenum titanium vanadium composite chromium carbide welding wire can improve layer`s bonding strength and tenacity. This wire can use for multilayer welding which has no peel off, and it can maintain good wear resistance under certain impact working condition.

Product recommendation:GSQD671Mo-4(1.6mm)

Medium carbon and high chromium wear resistance welding wire has a higher hardness, stronger wear resistance, and excellent toughness by adding a certain amount of molybdenum alloys and boride. It has a better impact resistance and strip resistance than high chromium cast iron type materials

Product recommendation: GSQD621Mo-4(1.6mm)

6. Tungsten Carbide Pellets

With high sphericity & excellent alloy organization, cemented carbide pellet is mainly used in welding, as an adding material of PTA Powder , tubular welding rod, to improve the wear resistance of the workpieces greatly.

Product recommendation: GQ06


Wc 6co Tungsten Carbide Pellets


7. Tungsten Carbide Grits

Cemented carbide grit with different percent of cobalt has good abrasive resistance and is widely used for making grinding, polishing and cutting tools.

Product recommendation: GS08A


Wc 8co Tunsgten Carbide Grits




Weld Materials,Tubular Welding Rod,Welding Electrodes,Stainless Steel Welding Rod

Luoyang Golden Egret Geotools Co., Ltd , https://www.hvafspray.com