Article catalogue:
- 1 、What is the manufacturing process of FRP tanks?
- 2 、What are the characteristics of the winding machine?
- 3 、How about Dongguan Xumei Packaging Machinery Co., Ltd.
- 4 、What models of waste paper balers do you have? How much can I buy it?
- 5 、Packaging Machinery-Hangzhou Meihua Packaging Machinery Co., Ltd.
What is the manufacturing process of FRP tanks?
FRP manufacturing process:
1. Preparation before construction:
Preparation of ⑴ fiber reinforced materials: the cloth or felt used for hand paste molding should be treated in advance, and the pretreated fiber reinforced materials should be selected as far as possible. No matter what kind of fiber and products, it must be kept dry and oil-free before use. The tailoring design of reinforced materials is very important, and generally it should be tailored centrally in order to improve efficiency and save cloth.
two。 Preparation of resin glue:
The process indexes of resin glue include three indexes: viscosity, gel time and curing degree.
① resin viscosity: resin viscosity, also known as fluidity, is an important index in hand paste molding, too high viscosity will cause difficulties in coating glue, not easy to soak the reinforced material; too low viscosity will lead to glue flow phenomenon, affecting the quality.
② gel time: after the resin glue is prepared, the time when it begins to get hot, sticky and lose fluidity is called gel time. It is generally expected that the glue will stop for a period of time and then gel after the paste is finished. If the gelation time is too short, the quality will be affected because the glue is sticky and impermeable in the construction. On the contrary, if it is not gelated for a long time, it will cause the loss of resin glue and the volatilization of cross-linking agent, resulting in incomplete curing and reduced strength.
③ curing degree: complete curing is an important condition to ensure product quality. From the point of view of the process, the degree of curing is divided into demoulding temperature and strength. The former is to ensure that the product has demoulding strength, so that the product can be removed from the mold without damage, while the latter requires the product to reach the use strength.
Generally, the curing degree in the production process is controlled by adjusting the formula. For hand paste products, it is hoped that the demoulding can be controlled in 24 hours, and the longer the time is, it will affect the production efficiency. When the room temperature is lower than 15 ℃, appropriate heating or heat preservation measures should be taken.
3. Glue coat paste preparation:
The glue coat paste is used to make the surface glue coat layer, and its function is to improve the weather resistance, water resistance and chemical corrosion resistance of the products, and prolong the service life.
Because the gel coat resin has thixotropy, it should be fully stirred when in use; the thickness of the coating should be controlled at about 0.25 to 0.4 mm; when the gel coat layer begins to gel, immediately paste the FRP and release the mold after complete curing; when using the gel coat resin layer, pollution or infiltration of small air bubbles between the gel coat layer and FRP should be prevented.
4. Preparation of hand paste molding tools:
The most commonly used hand paste forming tools are scissors, brushes, scrapers, scrapers, round grinders, polishing machines, electric drills and so on.
What are the characteristics of the winding machine?
Most of the wires commonly used in winding machines are enamelled copper wire (inductance coil for electronic and electrical products), enamelled aluminum wire, textile wire (yarn for winding textile machines), electric hotline for winding electric heating appliances and solder wire, wire, cable and so on.
There are many kinds of winding machines, which can be divided into general-purpose and special-purpose types according to their uses.
General-purpose-suitable for a variety of products winding machine, as long as the replacement of the corresponding mold and instructions can correspond to the processing of different products.
Special-purpose-a winding machine for a particular product.
Common special winding machines are
Square transformer
1. Square transformer– (special machine for thin wire, special machine for thick wire)
2. Special for ring transformer-(large ring machine, medium ring machine, small ring machine)
3. For other types of transformers
Motor coil
1. Special machine for fan motor (seat fan, ceiling fan, turning fan).
2. Special machine for toy micro-motor (flying fork type, special head-around type).
3. Series rotor coil special machine (power tool).
4. Split horsepower motor, and special machine for high horsepower motor.
Inductance coil
1. Special inductor for mid-week and color code.
2. Special machine for inductance coil with small magnetic ring.
3, speaker frequency division coil special machine 4, fluorescent lamp (electronic energy-saving lamp) ballast special machine.
Other loudspeaker voice coil
1. Special loudspeaker voice coil machine.
2. Special machine for electric heating pipe.
3. Insulating tape wrapping machine.
4. Special machine for textile yarn splitting.
According to the degree of automation, the winding machine can be divided into simple type, semi-automatic type and full-automatic type. The electronic control mode includes numerical control microcomputer single chip microcomputer and IBM computer control. According to the mode of installation, it is classified as desktop machine and floor machine.
According to the degree of automation can be divided into: full-automatic winding machine and semi-automatic winding machine.
Classified editing
Fully automatic type
With Japan as the pioneer, models have emerged in response to the rising labor force and high requirements for product quality. It can be combined into an equipment with a high degree of automation through motors, electric components, pneumatic components, transmission devices, sensors, control systems and so on. Usually can automatically arrange the wire, wrap the head, break the clamp, twist the thread, load and unload the material. Operators only need to ensure the adequacy of raw materials, and can ensure continuous production in time when there are no workpieces or copper wire, usually with a high number of shafts, in order to achieve efficient production. A machine with a high degree of automation can meet the requirements of one employee to take care of multiple devices at the same time.
Advantages: operators take up the post directly without training, high production efficiency, uniform product quality, and can work uninterrupted for a long time.
Disadvantages: the price is higher than semi-automatic equipment, it takes time to recover the cost to produce benefits, need to be specially equipped with technicians to ensure the operation of the equipment, fault maintenance is more tedious, and it is difficult to change the types of products.
It is suitable for mass production of single mature products.
Semi-automatic type
It is the most widely used winding machine in China at present, which can only realize automatic wire arrangement, and all the remaining operations need to be completed by operators. Usually a small number of shafts, in order to match the operating time of the operator, to facilitate the replacement of different moulds to produce different products.
Advantages: the price is cheap, some processes that cannot be completed by machinery can be completed manually, the deviation of the equipment can be adjusted and compensated by the operator, and it is convenient to change the product.
Disadvantages: need to be equipped with more manpower, staff need some training, limited by the proficiency of the operator.
Suitable for low-cost production, new product production, multi-variety and less batch production.
According to the winding mode can be divided into: flat winding machine, ring winding machine, flying fork winding machine, three-dimensional winding machine.
Leveling machine
A winding machine in which the wire is arranged in a helix on the outer layer of a workpiece by rotating the spindle and positioning through three-dimensional movement in space. It is usually used to process most transformers, inductors and all kinds of coils. It is the most widely used winding machine at present.
Ring type
A winding machine in which the wire is arranged in a spiral ring on a hollow circle, hollow square or other similar workpiece by rotating the main shaft (line storage wheel) and cooperating with the action of the auxiliary wheel. Commonly used for processing ring coils.
Flying fork type
A winding machine that uses a side motor to drive a flying fork to wind a wire. It is usually used for winding coils and rotors of cross instruments.
Three dimensional type
A winding machine produced to adapt to the special winding mode of a special product. It is usually used for winding processing of stator and special products.
How about Dongguan Xumei Packaging Machinery Co., Ltd.
good.
1. Xumei Packaging Machinery Co., Ltd. was established in 2008, producing automatic packaging equipment and packaging materials. Box sealing machine series: semi-automatic box sealing machine, automatic folding cover sealing machine, automatic corner edge sealing machine, box opener and other customized non-standard sealing machines. Packaging machine series, upper film pillow packaging machine, lower film pillow packaging machine, vertical packaging machine, winding machine. Packing machine series: semi-automatic packing machine, fully automatic packing machine and customized non-standard packing machine and so on.
2. The company has a maintenance department to purchase the company’s products, including installation and commissioning, guidance for operation and use, and after-sales service arrives within 12 hours in the Pearl River Delta and 24 hours outside the Pearl River Delta.
What models of waste paper balers do you have? How much can I buy it?
There are mainly 120, 160, 180 and 200 waste paper balers with a price of less than 200000. -Di Hai
Packaging Machinery-Hangzhou Meihua Packaging Machinery Co., Ltd.
Hello, Hangzhou Yongchuang Packaging Machine Co., Ltd. was founded in 1983, is located in Hangzhou West Lake Science and Technology Park, Zhejiang Province, with a modern final assembly workshop, precision parts processing workshop, R & D center, operation center, a total of 120000 square meters of plant. Is a professional packaging machinery research and development, production enterprises. The company’s main product series are: food vacuum packaging machine | double-chamber vacuum packaging machine | baling machine | labeling machine | sealing machine | wrapping machine | heat shrinkage machine | heat shrink packaging machine | food packaging machine | packaging line | packaging production line | palletizer; winding film | packing tape, etc. Products are widely used in light industry, food, foreign trade, department stores, printing, medicine, chemical, post and telecommunications, textile and other industries, in China’s packaging machinery industry has an absolute leading advantage, the products are exported to more than 50 countries and regions.
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