Cold Bend Test Apparatus
This test conforms to the standard requirements of IEC540. It is used for cold bend test of the circular insulation wire core whose diameter is small and the sector-shaped insulation wire core which can not be used for dumbbell. The apparatus shall be held in a refrigerator before and during the test.
The diameter of the mandrel shall be between 4 and 5 times the diameter of the test piece (see below).
The mandrel shall be uniformly rotated at a rate of one revolution in about 5 s and the number of turns shall be as specified in the following table.
1. Diameter of samples: 2.5～12.5㎜
Overall diameter (d) of the test piece (mm)
of turns Number
2. Diameter of pipe: 3,4,5,6,7,8,9,10,12,14,16(mm)
3. Diameter of test bar: 9.6,12.5,16,20,25,31.5,40,50(mm)
About us :
HongTong Electromechanical Co., Ltd is a leading company in inspection equipment industry, established in 2003 and located in Guangdong, China. Our company introduced advanced equipment, combined with the most advanced technology production processes, strict quality control system to control the entire process of production. The company combined with a number of high-tech management personnel and advanced equipment, and together with the modern management, computer design and control, our products has reached the international advanced level. The company set R&D design, production, sales as one, specializing in producing electric wire inspection equipment of plug and socket, mechanical robustness testing equipment of electronics, inspection equipment of electronics’ on-fire danger, testing indicator of anti-electric shock and solid objects' entry, general inspection equipment, and other non-standard testing equipment. Our products enhance good selling at home and abroad, and have established supply relationships with a number of well-known companies.