
Phenolic Cotton Rod, Phenolic Paper Rod,Bakelite Sheet, Cotton Sheet, Insulation Sheet for High Voltage Application
Description: the phenolic cotton rod, phenolic paper rod are created from cotton cloth that has been impregnated with phenolic resin under pressure and heat. Have low water absorption rate, high mechanical strength, good electric performance wether under the moist or dry environment and high temperature resistant, high dielectric performance and mechanical processing performance. Apply to PCB fixture, ICT fixture, pads of drilling machine, gear, motor, generator, transformer, fixture inverter, switch, electric insulation part, generator, transformer, fixture, inverter, motor and electric insulation component.
Specification:
materuial: phenolic resin+cotton fabric or paper
color: brown, beige, yellow, red
surface: smooth
tensile strength: 78Mpa
flexural strength: 90-110Mpa
compression strength: 138Mpa
breakdown voltage: 10KV
density: 1.25-1.40g/cm3
heat-resistant: B class 130
size: od8-200mm x 1m
Bakelite is called phenolic paper laminated sheet. A hard, dense
material made by applying heat and pressure to layers of paper or
glass cloth impregnated with phenolic resin. These layers of
laminations are usually of cellulose paper, cotton fabrics,
synthetic yarn fabrics, glass fabrics or unwoven fabrics. When heat
and pressure are applied to the layers, a chemical reaction
(polymerization) transforms the layers into a high-pressure
thermosetting industrial laminated plastic.
Color: orange red / Black
Good electrical properties
Good mechanical properties
No water absorption
High heat resistance
Good surface hardness
Abrasion resistance
Good insulation
Application
PCB fixture, ICT fixture, pads of drilling machine
Gear, motor, generator, transformer, fixture inverter
Switch, electric insulation part
Generator, transformer, fixture, inverter, motor and electric
insulation component.
Properties | Grade | |||||
Phenolic Cotton Cloth laminated Rod | ||||||
Properties | Units | 3723 | 3725 | 3726 | ||
Density | Dia(mm) | g/cm3 | 1.25-1.40 | 1.25-1.40 | 1.25-1.40 | |
Water absorption rate (D-24/23) | ≤ | 6 | % | 1.7 | 1.2 | 1 |
13 | 1.3 | (Φ13mm) | (Φ13mm) | |||
25 | 1 | |||||
> | 25~51 | 1.2 | ||||
Flexural strength | ≥ | MPa | 90 | 110 | 95 | |
Tensile strengh | ≥ | MPa | 78 | |||
Compression strength (Axial) | ≥ | MPa | 138 | 138 | 138 | |
Insulation resistance parallel to laminations | ||||||
A: Under normal condition | ≥ | W | 1.0×108 | |||
D-24/23: Immersion in water | ≥ | W | ||||
Breakdown voltage parallel to laminations (in transformer oil) | ≥ | KV | 10 | 10 | 10 | |
(20±5°C) | (20±5°C) | (20±5°C) | ||||
Flammability | - | - | - | - | ||
Color | - | Natural | Natural | Natural | ||
Reference standard | - | Enterprise Standard |
SANHE 3A RUBBER & PLASTIC CO., LTD.
We are a professional supplier and exporter of high quality rubber
and plastic products with reasonable price in China. We can help
you supply all kinds of rubber and plastic products with
professional products and services under reasonable &
competitive price. We are designing, producing and exporting
various types of silicone products, polyurethane products, PTFE
products, rubber mountings, rubber sheets, plastic products etc. as
well as other nonstandard specifications according to the buyer's
requests and drawings. We are sticking and developing the advanced
technologies and products in order to meet the gradually aroused
new demands and markets on the lines of industrial seal, chemical,
engineering, mechanical, electronics, automobile, construction,
pharmaceutical etc. We are adopting advanced technologies and
equipments, try to gather, control and keep the prominent &
excellent engineers, resources, technology and factories in China.
We can help you choice the different goods and
production-technology-roadmaps according to meet the buyer's
different requests. We thank to all of our trained employees and
believe that we shall become the important supplier and exporter on
the line of rubber & plastic products in the international
market in the foreseeable future.
Our silicone rubber factory is the largest manufacturing center of
silicone rubber material & products in China with more than
60,000 tons production capacity yearly. Our polyurethane factory is
the leader and pioneer of scientific research organization at
polyurethane industry in China who can produce all kinds of PU
sheet, rod, tube with themself polyurethane material. Our PTFE
factory is the leading manufacturer of PTFE sheet and rod who is
the largest factory at PTFE line in China. Our rubber sheet factory
is the best quality in north China who can produce all kinds of
high quality rubber sheet with realonable price. Our advanced
staffs and engineers persistently supplying the premium quality,
competitive price as well as considerate after-sale services. Our
sales network and clients have extend to more than 50 countries
covering South East Asia, North America, South America, Europe,
Oceania, Africa, Middle East and other regions throughout the
world.
Our products range is flexible and varied from commercial grade,
economy grade and premium grade with Chinese standard and other
country's standard or under the different requests and drawings
from the buyer. We do also help our clients in voles in other
request goods according to their special request as we are Chinese
and very know well the Chinese market with our profuse produce,
sale, purchase and export experiences, we are very convenient and
glad to help our clients connect with other Chinese manufacturer
and factory. All the above products are supplied in multiple
specifications in order to optimally meet our clients' specific
requests.
For better develop and supply our goods and services to our all
clients, we have established and registered our new sister company
of "SANHE BESTRUBBER IMPORT & EXPORT CO., LTD." on 11th June
2009 who help us directly handle all import and export program in
China.
Worldwide importers, wholesalers, distributors are welcome to visit
our factories and discuss long-term partnership. Your gracious
comments will be our fresh motivation and encouragement to driving
us to be top supplier and exporter in this world. Our service
catchword is "EXCELLENCE QUALITY SINCERE SERVICE". We hope that we
shall become your best ideal business partner and reliable friend!
Our goal is becoming the friends of our real & potential
customers, and our friends can be found everywhere in the world!