Safety precautions to be followed during operation of the Teflon mesh belt

Safety precautions to be followed during operation of the Teflon mesh belt

Teflon mesh belts are used in a wide range of applications. The belts can be applied to dryer mesh belt, sterilizer mesh belt, annealing furnace mesh belt, fryer mesh belt, sintering furnace mesh belt, instant noodle steamer mesh belt, etc., which are common application fields of Teflon mesh belts. So what are the safety regulations that should be observed during the use of Teflon mesh belts?

1. The Teflon mesh belt can be placed in the oven after all preparations are ready. A red light indicates that the box is heated. When the temperature reaches the controlled temperature, the red light turns off and the green light is on, and the temperature is started. In order to prevent temperature control failure, you must also look after it.

2. When placing the sample, it should be noted that the arrangement should not be too dense. The test piece should not be placed on the heat sink to avoid affecting the upward flow of hot air. It is forbidden to bake flammable, explosive, volatile and corrosive items.

3. When it is necessary to observe the Teflon mesh belt sample in the working room, the outer door can be opened and observed through the glass door. However, it is better to open the door as little as possible to avoid affecting the constant temperature. Especially when working above 200 °C, opening the door may cause the glass door to quench and rupture.

4. In a blasted oven, the blower must be turned on during heating and constant temperature, otherwise it will affect the uniformity of the temperature of the working chamber and damage the heating element.

5. It should be placed indoors in a dry and level place to prevent vibration and corrosion.

6. When using the microwave conveyor belt, pay attention to the safe power supply, according to the power consumption of the oven power consumption device with sufficient capacity. Use enough power leads and have a good grounding wire.

7. Teflon mesh belt oven with electric contact mercury thermometer type thermostat should connect the two wires of the electric contact thermometer to the two terminals on the top of the box. In addition, an ordinary mercury thermometer is inserted into the exhaust valve. The thermometer in the exhaust valve is used to check the electrical contact mercury thermometer and the opening of the exhaust valve for observing the actual temperature in the tank. Adjust the electric contact mercury thermometer to the required temperature and tighten the screws on the steel cap to achieve the purpose of constant temperature. However, be careful not to screw the indicator iron out of the scale.

8. When using, the temperature should not exceed the maximum operating temperature of the oven.

9. To prevent burns, use special tools when handling samples.

10. After the Teflon mesh belt is finished, the power should be cut off in time to ensure safety.

PTFE (teflon) adhesive tape

PTFE (teflon) adhesive tape

What is PTFE teflon adhesive tape.

PTFE (Teflon) adhesive tape: fiberglass is the base fabric, which is coated with PTFE (Teflon) emulsion and dried to PTFE (Teflon) coated glass fiber cloth; PTFE (Teflon) glass fiber cloth coated with silicone adhesive to PTFE (Teflon)adhesive tape.

PTFE (teflon) adhesive tape is high performance, new composite product. The surface is smooth, with good anti-stick, chemical, high temperature resistance and excellent insulation properties.

The application of PTFE (teflon) adhesive tape

Cladding of various high temperature drums, heating flat plates, stripping workpieces; heat sealing of food, medicine and plastic bags.
The cladding of runners, hoppers, aviation molds and other gaskets can also be applied to the sizing machine drum, thermoplastic demoulding and other industries, it’s reusable and easy to replace.
It is suitable for other surface treatment that requires anti-stick, corrosion and high temperature resistance. Be used in packaging, thermoplastic, composite, sealing and sealing, electrical and electronic industries, etc., where it needs to be adhered to heat-resistant and corrosion-resistant insulation, which can be pasted repeatedly.

The strength of PTFE (Teflon) adhesive tape is high and can be applied to the sizing machine drum, thermoplastic demoulding and other industries, and can be used repeatedly and easily replaced.
It can be directly pasted to various large flat surfaces and regular curved surfaces (such as drums). Without the limit of specialized equipment of spraying PTFE materials, special processes and without the transporttion of professional spray factory for processing. PTFE (Teflon) adhesive tape is excellent option, and the long term working temprature is up to 260℃.

The features of PTFE (Teflon) adhesive tape

1. Good thermal performance (continuous working temperature is above 260℃), the peak temperature can reach 300℃. The tape can be safely used even on overheated heaters;

2. Good adhesion, the slag of the melted packaging film will not stick to the heater.

3. Excellent electric insulativity.

Good stability, durability.

Application of PTFE (Teflon) adhesive tape

1. Heat sealing/cutting machine of food and medicine plastic packaging industry, and high speed heat sealing machine.

2. Anti-adhesive treatment on the surface of drying drums; anti-adhesive treatment on the surface of the laminating machine; anti-adhesive treatment on the surface of the drying drums.

3. Application of anti-adhesive, friction reducing.

The properties of PTFE (Teflon) adhesive tape

1. Weather, anti-aging resistance between low temperature -196℃ and high temperature 300℃.
For example, if it is placed at a high temperature of 250℃ for 200 days, the strength and the weight won’t be reduced. Be placed at 350℃ for 120 hours, the weight will only decrease by about 0.6%; Maintain the original softness at -180℃.

2. Non-stick: The surface is smooth and it is not easy to adhere to any substance. Easy to clean; all adhesive substances, such as paste, resin, paint, etc. can be easily removed.

3. Chemically resistant, which can resistant strong acids, alkalis, aqua regia and various organic solvent.

4. Medicament resistance and non-toxic. Resistant all pharmaceutical items.

5. High insulation performance (permittivity: 2.6, tangent below 0.0025), UV protection, anti-static.

6. Fire retardant.

7. Easy to use and long service life.

Advantages of the Teflon series products produced by Shenzhen Core-Tex

Advantages of the Teflon series products produced by Shenzhen Core-Tex

After the product has been coated with Teflon, the product will have the following characteristics:

1. Teflon coating with non-stick: Almost all materials do not adhere to the Teflon coating. Very thin films also show good non-stick properties.

2. Teflon coating with heat resistance: The Teflon coating has excellent heat resistance and low temperature resistance. It can withstand high temperature to 300 °C in a short time, and can be used continuously between 240 °C and 260 °C. It has remarkable thermal stability, it can work at freezing temperature without embrittlement, and does not melt at high temperatures.

3. Teflon coating with sliding resistance: Teflon coating has a lower coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05 and 0.15.

4. Teflon coating with moisture resistance: The surface of the Teflon coating is not water or oily, and it is not easy to get into the solution during production. If there is a small amount of dirt stuck, it can be removed by simple wiping. Short downtime, saving time and increasing productivity.

5. Teflon coating with wear resistance: The product has excellent wear resistance under high load. Under certain load, it has the dual advantages of wear resistance and non-sticking.

6. Teflon coating with corrosion resistance: Teflon is almost immune to drug erosion, it protects parts from any kind of chemical corrosion.

Analysis of main components of non-stick coatings in the production of Teflon

Analysis of main components of non-stick coatings in the production of Teflon

The basic film-forming materials for non-stick coatings in the production of Teflon are fluororesins and binders. The choice of fluororesin plays a crucial role in the non-stick properties of Teflon spray non-stick coatings.

There are many types of fluororesin sprayed on Teflon, among many fluororesins, polytetrafluoroethylene (PTFE) has the lowest friction coefficient, so PTFE is the preferred fluororesin for non-stick coatings. For better coating properties or ease of construction, Generally, a resin such as tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) or tetrafluoroethylene-hexafluoropropylene copolymer (FEP) is added on the basis of PTFE. Therefore, the fluororesin for non-stick coatings is generally a PTFE-based Teflon mixture.

Teflon PTFE has a regular structure, high crystallinity, and is almost insoluble in any solvent under normal temperature conditions; and the melting temperature is high, the melt viscosity is large, the fluidity of the coating is not good, which directly affects the non-stickiness of the Teflon-coated non-stick coating. For the above reasons, the fluororesin used in general non-stick coatings is a mixture of PTFE and other fluororesins, such as FEP, PFA, and the like. Compared with PTFE, FEP has the advantages of better melt flow and lower crystallinity, which results in a lower porosity of the formed coating, which is especially suitable for the hot and humid environment of baked food factories. PFA is very close to the chemical and thermal stability of PTFE, but PFA has higher toughness than PTFE and improves the wear resistance of the coating. The addition of PFA prevents the formation of large crystalline areas on the surface of the coating film.

Usually, adding more than 40% by weight of PFA has a significant effect. However, the miscibility of PTFE and FEP is limited, and a crystallization zone is formed in a portion where each polymer is separated, and a coating film defect sometimes occurs. Large pores and coating film defects are not allowed in a coating for preventing the substrate from being permeable to water or gas. These defects are to a large extent related to the composition of the fluoropolymer and may also be related to other ingredients in the coating formulation. The method and conditions of using the coating are also important in controlling the structure of the coating (such as cooling rate). The addition of copolymers such as FEP and PFA contributes to the formation of a coating having a lower degree of amorphousness than pure PTFE due to its low crystallinity. Therefore, the mixing of PTFE with FEP or PFA in Teflon non-stick coatings can improve the impermeability of the coating and prevent the formation of defects such as bubbles or corrosion

Can the PTFE series be recycled ? Safe recycling method for PTFE

Can the PTFE series be recycled ? Safe recycling method for PTFE

PTFE, Whose scientific name is PTFE, which is a high-performance material with heat resistance, chemical inertness, insulation stability and low friction. It is widely used as a frying pan coating, breathable sportswear materials, and electronic product insulators. There is no effective method for recycling, also recycling for this material, the conventional combustion treatment method not only easily damages the combustion equipment but also generates highly polluting gas.

The University of Bayreuth in Germany published a communique in 2015 saying that the school’s material processing scientists worked with the business community to develop a cost-effective and pollution-free method for recycling Teflon materials. This achievement will help solve the problem of Teflon waste disposal.

German researchers first decomposed this material into smaller molecules and used microwaves as a heating source to generate pyrolysis, resulting in a recovery of 93%. According to the researchers, another feature of the method is that it does not produce harmful by-products during the process and ensures safe recycling of Teflon.

According to the researchers, they will establish a small experimental plant in the next step to verify the industrial feasibility of this method.

Performance and application of Teflon series products

Performance and application of Teflon series products

PTFE is widely used as Corrosive materials, insulating materials, anti-stick coatings materials in industries such as atomic energy, national defense, aerospace, electronics, electrical, chemical, machinery, instrumentation, instrumentation, construction, textile, metal surface treatment, pharmaceutical, medical, food, metallurgical smelting, etc. , which has been treated as an irreplaceable product.

Teflon coatings have excellent comprehensive properties and can be used as engineering plastics for PTFE tubes, rods, strips, plates, films, etc.

Generally it is used with high performance requirements in corrosion-resistant pipes, containers, pumps, valves, and radar, high-frequency communication equipment, radio equipment, etc. .

Adding any filler in PTFE that can withstand the sintering temperature which can greatly improve its mechanical properties.

At the same time, it can maintain other excellent properties of PTFE.

Filled varieties materials include glass fiber, metal, metal oxide, graphite, molybdenum disulfide, carbon fiber, polyimide, EKONOL, etc. The wear resistance and ultimate PV value can be increased for more than 1000 times.

Painting on the surface of the bullet warhead can increase the penetrability of the bullet, allowing the bullet to shoot through the bulletproof vest.

Whether the FDA food grade certified Teflon mesh belt is harmless to the human body

Under normal circumstances, the products processed by Teflon spray are not harmful to the human body, because the raw materials processed by Teflon spray processing are subject to strict international standards before they can be put into the market. The use of certification is not to say that Teflon spray processing is not harmful to the human body. If you do not operate properly, for example, the mold you spray with Teflon may be in the process of moving, moving, lifting, lifting. Drops cause personal injury. Therefore, we recommend paying attention to production safety during the Teflon spraying process. Teflon spraying itself is not harmful,but you need to avoid accidental injury during operation.

What is the difference between Teflon spray processing and Iron-Teflon spray processing?

Teflon and Iron-Teflon are no different, just different names, one is a big name, one is a small name, if you distinguish the relationship between them from the industry, Teflon spraying processing is a general term for this spraying process. Others are subdivided. high-performance special Teflon coatings are fluorine coatings based on polytetrafluoroethylene as the matrix resin. The English name is Teflon. Because of the pronunciation, it is often called Teflon, Tiefulong, Tefulong, Tefulon, etc. (all Teflon transliteration) such as Teflon spray processing, Teflon spray processing TEFLON spray processing, etc. all are Teflon spray processing segmentation. Teflon (Teflon) coating is a unique high-performance coating that combines heat resistance, chemical inertness and excellent insulation stability and low friction. It has the combined advantages that other coatings cannot compete. Sex makes it suitable for use on almost any shape and size.

After Teflon spray processing, it has the following characteristics:

1. Non-stick: almost all substances are not bonded to the Teflon coating. Very thin films also show good non-stick properties.
2. Heat resistance: Teflon coating film has excellent heat resistance and low temperature resistance. It can withstand high temperature to 300 °C in a short time. It can be used continuously between 240 °C and 260 °C. It has remarkable thermal stability. It can work at freezing temperature without embrittlement and does not melt at high temperature.
3, slidability: Teflon coating has a lower coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05 and 0.15.
4. Moisture resistance: The surface of Teflon coating film is not stained with water and oil. It is not easy to get into the solution during production operation. If there is a small amount of dirt, it can be removed by simple wiping. Short downtime, saving time and increasing productivity.
5, wear resistance: under high load, Teflon spray processing has excellent wear resistance. Under certain load, it has the dual advantages of wear resistance and non-sticking.
6. Corrosion resistance: Teflon spray processing is almost free of chemical attack and can protect parts from any kind of chemical corrosion.

Why does the Teflon mesh belt get FDA food certification? Is the Teflon mesh belt safe for food baking?

Now Teflon mesh belt has been used more and more widely in the food baking industry. It can be used as a conveyor belt to dry food, such as dried chrysanthemum, dehydrated vegetables, soybeans, peanuts, wheat, etc. The platter is baked with mooncakes, biscuits, taro, pies, etc., and the application is more commonly used as a drying conveyor belt.

Why is the Teflon mesh belt suitable for food baking? Why can Teflon mesh belts improve the productivity, product quality and cost reduction of food baking companies?

  1. Teflon mesh belt has unparalleled high temperature resistance. Although the high temperature resistant ofteflon mesh belt is higher than the stainless steel mesh belt , the stainless steel mesh belt is easy to rust and can easily damage food.
  2. Teflon mesh has strong non-stick and anti-stick effect. It is not easy to stick to flour, cooking oil, starch, sugar, and it is easy to clean.
  3. The Teflon mesh belt itself has extremely high tensile strength and is resistant to fatigue and breakage. It is more important that the use in harsh environments does not affect its physical and chemical properties.
  4. Teflon mesh belts do not release gases and other substances that are toxic to humans. Teflon non-stick pans are a good example.
  5. The Teflon mesh belt has a long service life, which can greatly reduce the production investment of the enterprise, and the food enterprise can repair the damaged mesh belt by itself.

Related terms in this article

Mesh belt

Mesh belt is a method of using static friction to drive a machine that transports materials in a continuous manner. It can be used to form a material conveying process on a certain conveying line from the initial feeding point to the final discharging point. It can carry out the transportation of broken materials as well as the transportation of individual items. In addition to pure material handling, it can also be combined with the requirements of the process in the production process of various industrial enterprises to form a rhythmic flow line. The mesh belt materials used in different environments are also different, such as carbon steel, galvanized iron wire, spring steel and so on. The choice of working environment determines the choice of materials. Therefore, metal mesh belts are widely used in modern industrial enterprises. It is an indispensable and important accessory in automatic devices and modern automated assembly lines in various industries.

Mesh belt type

  1. According to the shape: crankshaft mesh belt, straight shaft mesh belt, flat wire mesh belt, B mesh belt, herringbone mesh belt, metal mesh belt, chain rod mesh belt, eye mesh belt, chain Chip mesh belt, chain mesh belt, U-shaped chain mesh belt, chain plate mesh belt, baffle mesh belt, triangular barrier mesh belt, rod mesh belt, flanged mesh belt, spherical mesh belt , belt type mesh belt, plus plate type mesh belt, single rotary mesh belt, diamond mesh belt and so on.

2, according to the use of: food mesh belt, conveyor belt, high temperature mesh belt, transmission mesh belt, etc.

3, according to the material points: stainless steel mesh belt, metal mesh belt and so on.

How can Teflon tape be safely stored and how to use it?

How to store, transport and use Teflon tape, Teflon adhesive tape, PTFE tape, pure Teflon tape and other tapes during daily use and transportation?

1. Teflon tape should be stored in the warehouse to avoid sun and rain. It is forbidden to contact with the organic solvent of acid and alkali oil, keep it clean and dry at the room temperature (-15℃ to 40℃)away from the device.

2. Teflon tape should be placed in rolls without folding. It should be flipped once a quarter.

3. Use the crane to load and discharge the conveyor belt, and use the rigging with the beam to hoist to avoid the damage of the belt edge. Do not load and discharge arbitrarily.

4. The type and specification of Teflon tape should be reasonably chose with the needs.

5. Do not connect (match) tapes of different varieties, different specifications, strength, and layers of fabrics.

6. Teflon conveyor belt joints are preferably hot vulcanized to improve reliability and maintain high effective strength.

7. The diameter of the conveyor roller and the diameter of the smaller conveyor pulley should comply with the relevant regulations.

8. Don’t let the tape serpentuate, keep the roller, the vertical roller is flexible, and the tensionshould be moderate.

9. Avoid wear of the tape in case of the conveyor is equipped with baffle and cleaning device.

10. Cleanliness is the basic condition for the good operation of the tape. Extraneous substances can affect the belt eccentricity, tension, and even breakage.

11. If there is damage during using the Teflon tape, find the cause and repair in time to avoid the occurrence of adverse consequences.

Related terms in this article

Tape

Richard Gurley Drew applied in the United Kingdom and the United States that he developed a very light, pressure-matching adhesive, it was not sticky enough at the beginning, so Drew was told: “Get this tape back to your Scottish boss and ask them to put more adhesive!” (“Scotland” means “stingy”. But during the Great Depression, people had found hundreds of uses for this type of tape.

Why the Teflon conveyor belt is deflected?

Teflon conveyor belt is one of the key equipment for belt conveyors, So whether it can run smoothly is related to the operation of the entire conveyor.

Once the Teflon conveyor belt is deflected, it will accelerate the wear of the belt edge, shorten the service life, and seriously affect the production progress.

In addition to routine maintenance, installation accuracy is an important factor affecting the smooth operation of Teflon conveyor belts. Installation accuracy is mainly in conveyor belt and conveyor debugging of two aspects .

How do we judge which problem is caused by the deviation caused by the installation accuracy?

First, check whether the front and rear rollers of the conveyor are on the same center line and confirm whether they are parallel to each other;

Secondly, check whether the perimeter and diagonal of the two sides of the Teflon conveyor belt are equal.

When the Teflon conveyor belt is deflected to one side, the conveyor belt can be turned in the same direction. If the deviation is still to the original side, it is necessary to focus on checking the conveyor problem; if it is to the other side, it needs to pay attention to the situation of the Teflon conveyor belt.

Related terms in this article

Conveyor belt

Product structure: This product is made of multi-layer hanging cotton canvas as the skeleton, and the surface is covered with good rubber material and vulcanized. Conveyor belt series products include ordinary cotton canvas conveyor belt and nylon (NN) conveyor belt (divided into NN-100 type, NN-150 type, NN-200 type, NN-250 type, NN-300 type, NN-350 type, NN-400 type), polyester (EP) belt (divided into EP-100 type, EP-150 type, EP-200 type, EP-250 type, EP-300 type, EP-350 type, EP-400 type) , large dip angle (corrugated rib) conveyor belt, skirt partition conveyor belt, endless conveyor belt, pattern conveyor belt(as?delivery?and?distribution of materials?with different?angle?sizes, shapes?and?height?requirements?are also?different patterns). Commonly used pattern conveyor belts such as: chevron pattern conveyor belt (herringbone conveyor belt including upper convex, lower concave herringbone conveyor belt), figure-8 shaped pattern conveyor belt, fishbone pattern conveyor belt, U-shaped pattern conveyor belt, cylindrical Pattern conveyor belt, pitting pattern conveyor belt, grass pattern conveyor belt, or according to user requirements), water stop belt, PVC or PVG whole core flame retardant belt; and can provide a variety of special performance conveyor belt (general Flame-retardant conveyor belt, heat-resistant conveyor belt, burning-resistant conveyor belt, high wear-resistant conveyor belt, acid-resistant conveyor belt, alkali-resistant conveyor belt, cold-resistant conveyor belt, oil-resistant conveyor belt, high-temperature conveyor belt, high-strength conveyor belt and food Conveyor belt, Teflon conveyor belt, stainless steel conveyor belt, chain conveyor belt, conveyor belt).

Teflon

Teflon was discovered in 1938 by chemist Dr. Roy J. Plunkett at DuPont’s Jackson Laboratory in New Jersey, USA: When he tried to make new chlorofluorocarbon refrigerants Tetrafluoroethylene is polymerized in a high pressure storage vessel (iron on the inner wall of the vessel becomes a catalyst for polymerization). DuPont obtained its patent in 1941 and in 1944 registered its trademark under the name “Teflon”. Subsequently, DuPont developed a series of products in addition to Teflon? PTFE resin, including Teflon; AF (amorphous fluoropolymer), Teflon; FEP (fluorinated ethylene propylene resin), Teflon; FFR (fluorine polymerization) Foam resin), Teflon; NXT (fluoropolymer resin), Teflon; PFA (perfluoroalkoxy resin) and so on. In 1954, Colette, the wife of French engineer Marc Gregoire, had a whimsy. She thought that if the non-stick material “Teflon” that her husband used to apply on the fishing line which to prevent knotting could be used on the frying pan, the effect must be good. The “non-stick” that saved countless modern housewives was born.

Conveyor

According to the operation mode, the conveyor can be divided into: belt conveyor, screw conveyor, bucket elevator, roller conveyor, metering conveyor, chain conveyor, mesh belt conveyor and chain conveyor.