Product Description
Vulcanization is a chemical process in which the rubber is heated with sulphur, accelerator and activator at 140-170°C. The process involves the formation of cross-links between long rubber molecules so as to achieve improved elasticity, resilience, tensile strength, viscosity, hardness and weather resistance Eco friendly yoga mat making machine Anti-fatigue yoga exercise matt machine High quality Yoga Mat EVA foam machine Logo Eco Friendly Yoga sports Mat making machine colorful Interlocking Soft Gym Yoga mat machine Exercise EVA Foam Mat making machine
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Vulcanization with sulfur
The most common vulcanizing methods depend on sulfur. Sulfur, by itself, is a slow vulcanizing agent and does not vulcanize synthetic polyolefins. Accelerated vulcanization is carried out using various compounds that modify the kinetics of crosslinking;this mixture is often referred to as a cure package. The main polymers subjected to sulfur vulcanization are polyisoprene (natural rubber) and styrene-butadiene rubber (SBR), which are used for most street-vehicle tires. The cure package is adjusted specifically for the substrate and the application. The reactive sites-cure sites-are allylic hydrogen atoms. These C-H bonds are adjacent to carbon-carbon double bonds (>C=C<). During vulcanization, some of these C-H bonds are replaced by chains of sulfur atoms that link with a cure site of another polymer chain. These bridges contain between one and several atoms. The number of sulfur atoms in the crosslink strongly influences the physical properties of the final rubber article. Short crosslinks give the rubber better heat resistance. Crosslinks with higher number of sulfur atoms give the rubber good dynamic properties but less heat resistance. Dynamic properties are important for flexing movements of the rubber article, e.g., the movement of a side-wall of a running tire. Without good flexing properties these movements rapidly form cracks, and ultimately will make the rubber article fail.Comfort TPE Yoga Mat machine Non-slip Sports Fitness Pad making machine Pilates mat making line Fitness Mat machine Anti-skid Sports matt machine EVA Foam mat machine EVA Yoga Mat machine colorful Interlocking Soft Gym Yoga mat machine Exercise EVA Foam Mat making machine Extra Thick 15mm gym EVA foam machine Anti-Tear TPE EVA NBR yoga foam mat making line
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Vulcanization of polychloroprene
The vulcanization of neoprene or polychloroprene rubber (CR rubber) is carried out using metal oxides (specifically MgO and ZnO, sometimes Pb3O4) rather than sulfur compounds which are presently used with many natural and synthetic rubbers. In addition, because of various processing factors (principally scorch, this being the premature cross-linking of rubbers due to the influence of heat), the choice of accelerator is governed by different rules to other diene rubbers. Most conventionally used accelerators are problematic when CR rubbers are cured and the most important accelerant has been found to be ethylene thiourea (ETU), which, although being an excellent and proven accelerator for polychloroprene, has been classified as reprotoxic. The European rubber industry has started a research project SafeRubber to develop a safer alternative to the use of ETU.
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1 Parameter for EVA TPE NBR foam products Vulcanizing Press Machine
| Parameter/model |
JSD-
1300×2000X1 |
JSD-
1200×2500×1 |
JSD
1500×2000×1 |
JSD
2000×3000×1 |
| Total Pressure(MN) |
5.6 |
7.5 |
10 |
18 |
| Plate Size(mm) |
1300×2000 |
1200×2500 |
1500×2500 |
2000×3000 |
| Daylight(mm) |
400 |
400 |
400 |
400 |
| Daylight Qty |
1 |
1 |
1 |
1 |
| Piston Stroke(mm) |
400 |
400 |
400 |
400 |
| Unit Area Pressure(Mpa) |
2.15 |
2.5 |
3.3 |
3 |
| Main Motor Power(KW) |
8 |
9.5 |
11 |
26 |
| Overall Dimension(mm) |
2000×1860×2500 |
2560×1700×2780 |
2810×1550×3325 |
2900×3200×2860 |
| Weight(KG) |
17000 |
20000 |
24000 |
66000 |
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2 Configuration for EVA TPE NBR Foam products Vulcanizing Press Machine, Rubber and plastic EVA TPE NBR curing Press
A:Frame: The material is Q345 steel welded, and using Co2 protection welding process. high strength, no air hole, not easy broken, then using the tempering process, to release the internal stress. can not out of shape, at last using the CNC machining center treatment.
B:Heating pipes: Stainless steel ,long using life, material is SUS304
C:Plunger: Vanadium and titanium Alloy Chilled Cast Iron, High hardness (68~72HS )and good abrasion , resistance, can not easy broke the seals
D:Hydraulic cylinder: Nodular cast iron, the material is QT-500, hardness 68~72 HS, using the annealing treatment, and flaw detection process choose the best one.
E:The heating plate :35# steel
F: Thermal baffle: Silicon 3 Calcium plate, not easy broke seals
G: Valve: Cartridge valve, not easy broken and no need maintain brand from Huade
H:Hydraulic pump: Brand from YUCI YUKEN HYDRAULICS Co., LTD
I: Low-voltage apparatus: The brand from Schnaeider or Mitsubishi Zhengtai
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TPE Tpo TPR EVA EPDM PP Foam Sheet making Line Yoga sheet machine
EVA/PE Foam Sheet Making Machine/Plate Vulcanizing Press machineTPE Tpo TPR EVA EPDM PP Foam Sheet making Line Yoga sheet machine
1. Basic introduction
EVA foam sheet vulcanizing press applies to all kinds of rubber (natural rubber, EPDM rubber, NBR rubber, synthetic rubber, silicone rubber ext. ) vulcanizing and compression molding. The product is the main material of EVA sole, Yoga mat and foor mat
Yoga mat is made from EVA foam sheet dyed in various colours with different patterns and in different sizes.
EVA/PE Foam Sheet Making Machine/Plate Vulcanizing Press machine
Advantage
1. The roller is made of chilled casting vanadium & titanium alloy iron which is hard and wear-resisting, the surface hardness is above 70degree, the surface coating is about 15mm.
2. Hard tooth gear reducer with well-design structure, low noise, high efficiency and long service life.
3. Self-aligning bearing is well matching with the bearing inside leakage-proof device. The sealers are made of high temperature,wear, oil resistance material,which have very good sealing effect.
4. All main electrics are imported, the alternating current contactor is Shilin brand. The switch and button are Taiwan Tend brand.
5. Circulating lubrication system solves the oil leakage problem. The feature of this system is easy to maintain,easy to replace.
6. This machine is installed with overload protection device which protect the machine will not broken if the machine is overload.
The machine will reverse 1/3 round when press the emergency stop button,which sure the production safety.
7. The machine base is welded by national standard I steel.
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1100tons Foaming press
| 1 |
Closing mould force: |
1100 tons |
| 2 |
Structure: |
Four column type, single cylinder |
| 3 |
Dimension of platen: |
1350×1600mm |
| 4 |
Plunger diameter: |
838mm |
| 5 |
Layer distance: |
150mm |
| 6 |
Working layers: |
6 |
| 7 |
Ram stroke: |
900mm |
| 8 |
Distance between Columns: |
1600mm |
| 9 |
Heating media: |
Heat conduction oil |
| 10 |
Position of Hydraulic Station: |
in the dig, at the right side of the press |
| 11 |
Pressure drop of hydraulic system |
per hour≤5%.P |
FAQ
Q1:Why choose Us?
1.More than 20 years history of JOUYU MACHINE factory.
6-8 years foreign sales experience staff, more efficiency and professional.
Engineers oversea service more than 20 countries .
2.ISO:9001,CE,BV certification approval
3.Service timely, Promise to give solution within 12 hours,Guarantee customer trouble free.
4.Short delivery date, No delay. Accept urgent order for prompt shipment.
Q2:What about delivery date?
It will be according to the quantity of machines. Normally machines will be shipment within 20-30 days after get deposit, No delay.
Accept urgent order for prompt shipment.
Q3:What's the warranty statement?
,Jouyu MACHINE warrants all the products manufactured
Jouyu MACHINE to free from defects in material and workmanship
Under normal use of a period of 12 months or 36months after the date of the original purchase price if repair or replacement is not possible of practical, ,Jouyu MACHINE warranty covers ONLY the product itself.
,Jouyu MACHINE will assume no liability for labor costs, installation costs, or other losses.
Your warranty rights will be honored
Only when the product has been installed and used properly as deemed,Jouyu will not repair products damaged by improper use or faulty installation.
Q4:What about JOUYU oversea service ?
Jouyu will arrange oversea setting up and training works if customer need .
Customer should pay for accommodation , tickets and salary .
Meanwhile Jouyu has branches in different areas like north America , Southeast Asia , Brazil etc , etc .
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