2020 High quality Heat Shrink Tubing - Heat Shrink Stress Control Tubing – Yongjiu

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2020 High quality Heat Shrink Tubing - Heat Shrink Stress Control Tubing – Yongjiu Detail:

Application
1.Used for medium voltage termination and straight joint up to 36kV
2.Effectively disperse electrical stress,control partial discharge
Feature
1.Anti-tracking
2.Superior electrical and mechanical properties
3.Shrinkage ratio 3:1

The production of heat shrinkable tubing must first select the appropriate masterbatch, and then select the auxiliary materials to produce specific
The thermal housing casing.
1. The production process of heat shrinkable tube is firstly the production of polyene leech masterbatch: combining various polyene leech base materials with various functional auxiliary materials
The materials are weighed according to the formula ratio and then mixed: the mixed materials are put into a twin-screw extruder and pelletized to produce a polyene leech functional masterbatch.
2. Product molding process: according to the shape of the product, two methods of single screw extrusion and injection molding can be used.
For processing and production:
1. Single-screw extrusion type: mainly used for extrusion molding of heat sink pipes, such as single-wall heat-shrinkable tubes, double-wall heat-shrinkable tubes with glue, and medium thickness
Wall heat sink pipes, high pressure busbar heat sink pipes, high temperature heat shrinkable pipes and other products are all processed and formed by single screw extrusion.
The heat shrinkable tube production line should have the following equipment: extruder (heat sink tube forming), production mold, cooling water tank, tension device, and
Disk device, etc.
2. Injection molding: mainly used for the production of heat-shrinkable special-shaped parts, such as heat sink caps, heat-shrinkable umbrella skirts, heat-shrinkable finger cots and other products
They all use injection molding, and production equipment should include injection molding machines and injection molds.
3. The next important step is radiation cross-linking. The products formed by extrusion or injection molding are still linear molecular structures.
Structure, the product does not yet have the “memory function”, and the performance of temperature resistance, aging resistance, and wear resistance is not enough.
Change the molecular structure of the product. The method we usually use is radiation crosslinking modification: electron accelerator radiation crosslinking, cobalt source radiation
Cross-linking, peroxide chemical cross-linking, at this time the molecule changes from a linear molecular structure to a network structure. Extruded products are passing
After cross-linking, it has a “memory effect”, which greatly enhances the temperature resistance, mechanical properties, and chemical properties of the heat shrinkable tube. The specific table
Now the heat sink tube has changed from the state of tolerance to incompatible, aging resistance, abrasion resistance, and chemical corrosion resistance.
4. Expansion molding: The product modified by radiation crosslinking already has a “shape memory effect”, and it has a high
Non-melting performance under temperature. After heating at high temperature, vacuum blowing and cooling, it becomes the finished heat shrinkable tube, and then according to the tube
The actual situation of the finished product packaging and closing can also be cut and printed according to customer needs. Neutral normal packaging is also available.

Heat Shrink Stress Control Tubing

Performance

 

Test Test Method Requirement
Operating temperature UL 224 -50 to+125 ℃
Tensile strength ASTM D 2671 ≥14 Mpa
Elongation at break ASTM D 2671 >400%
Elongation at break after heat aging ASTM D 2671 158℃/168hrs ≥300%
Longitudinal shrinkage UL 224 0±5%
Partial wall rate ASTM D 2671 <30%
Flame retardancy VW-1 Pass
Volume resistivity IEC 93 >1014Ω.m
Copper stability UL224 Pass

 

Type

Application Diameter Range(mm)

Expanded(mm)

Recovered(mm)

    D(min) d(max) W(min)
YRSG10-26/10 12-18 26 10 1.5
YRSG10-34/14 14-21 34 14 1.5
YRSG10-38/18 17-27 38 18 1.5
YRSG10-50/20 23-39 50 20 1.8
YRSG35-50/20 23-39 50 20 2
YRSG35-65/25 28-46 65 25 2
YRSG35-70/30 33-53 70 30 2

 


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2020 High quality Heat Shrink Tubing - Heat Shrink Stress Control Tubing – Yongjiu detail pictures


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Our pursuit and corporation aim should be to "Always satisfy our consumer requirements". We carry on to build and style and design remarkable quality items for both our outdated and new clients and reach a win-win prospect for our clients at the same time as us for 2020 High quality Heat Shrink Tubing - Heat Shrink Stress Control Tubing – Yongjiu , The product will supply to all over the world, such as: Madrid, Islamabad, Bahamas, Our company has already have pass the ISO standard and we're fully respect our customer 's patents and copyrights. If the customer provides their own designs, We will guarantee that they will likely be the only one can have that merchandise. We hoping that with our good products can bring our customers a great fortune.
  • The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
    5 Stars By Tyler Larson from Sudan - 2017.11.20 15:58
    The product classification is very detailed that can be very accurate to meet our demand, a professional wholesaler.
    5 Stars By Patricia from Amsterdam - 2017.08.18 11:04
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