9. What are the main differences between disc winch and cage winch?

A: The stranding part of the cage winch is connected to the pay-off device, while the stranding part of the disc winch is not connected to the pay-off device, but is connected to the traction device and take-up device.
10, according to the structure, which kinds of wrapping forms are used for cable wrapping?
A: There are three types: simple, flat, tangential or semi-tangential.
The simple lapping head is the lapping of the same group or the cable core axis at an Angle.
The flat type lapping head is the lapping with the same line group or the cable core axis formed vertically.
Tangential (semi-tangential) lapping head is the lapping with the same line group or the cable core axis in parallel.
11. The trial fraction represents the relationship between the pitch distance h(mm) and the advance speed V(m/ min) of the cable core and the number of revolutions n(RPM) of the cable core.
Answer: h=V/n=1000(mm)
12. What is the difference between unit type and concentric type?
Answer: The direction of each layer of the cable core is the same, and the multiple of the skein is larger, which is about 1.5 times that of the concentric skein. The number of units in each layer of the cable core does not follow the rule of n+6. The reason is that due to the deformation caused by the completion of the cable core, the units no longer maintain the original circle. The number of units per floor basically follows the n+4 rule.


13. What is cable? How many kinds of deformation does the insulated wire core have when it is wired?
A: The process of stranding cables with multiple insulated cores according to certain rules is called cable formation.
When the insulated wire core is wired, there are two kinds of deformation: one is the bending deformation of the wire core around the cylinder, and the other is the torsional deformation around the direction of the helix.
14, what is the torsion? Why are untwisted cables used for round core cabling?
Answer: The method of using line twisting when stranding is called untwisting. For round core cabling, untwisted cable is used to reduce core deformation to avoid damage to insulation due to deformation, and to make the cable have better flexibility.
15. What are the main qualities and requirements of auxiliary materials in the process of power cable cabling?
A: The auxiliary materials in the process of power cable cabling are: filling rope liner layer, binding tape and shielding tape, etc., they should have heat resistance, non-water absorption performance of the cable working conditions are the same, and there is no corrosion insulation material, filling with binding tape should have considerable mechanical properties, in line with the process requirements.
16, the general selection principle of fan wire core cable mold? What else should we pay attention to in the specific operation process?
A: The first mold is 1.0 ~ 3.0mm larger than the cable outer diameter, and the second mold is 0 ~ 0.6mm smaller than the cable outer diameter. The third mold is 0 ~ 0.2mm smaller than the outer diameter of the cable.
In the actual use of the mold, it should be noted that the cable cannot swing in the mold, the hand-turning cable core does not feel loose, and the heat generated by friction between the die and the insulated wire core should not be hot. The insulated wire core comes out of the die surface with smooth and non-damaging marks.
17, a specification of the control cable after the cable is found to be stretched thin or even broken, analyze the main reasons?
A: (1) Excessive pay-off expansion force. (2) Wire nozzle clamp wire. (3) There is a package on the core insulation, and the local thickness is large. (4) The wire connector is not strong. (5) The expansion force of the line is too large.
18, fan insulation core turn over causes and prevention measures?
Answer: The reasons for fan insulated core turning over are:
(1) The pretorsion Angle is insufficient. (2) When the pay-off tray is on, the core line is turned over and the core is thick. (3) When the bottom plate is divided, the core is turned over.
The prevention methods are: (1) Adjust the distance between the pre-angle spring press die and the core guide wheel. (2) Adjust the pretorsion Angle. Arrange the top line of the pay-off tray once, turn it over if necessary, and arrange the lines neatly and not loosely.
Qingdao Tianxing Cable Co., Ltd. is a technical enterprise specializing in the production of wire and cable in Shandong Province. After years of unremitting efforts, the company has established a good brand image in the industry, and built a new modern production base, updated some modern intelligent production equipment, and established a new enterprise management system of institutionalization, process and standardization. Enterprises adhering to the cultural purpose of "Tianxing Jian terrain Kun", to do a good job of wire and cable concept, and strive to be perfect, "good products, good service customers".