Roof Sealer

Hot Products

FAQ

What are the main plastic forming processes?
3. cold pressing molding. Cold pressing molding is also called cold pressing sintering molding. The difference between the cold press molding and the ordinary compression molding is that the material is pressurized and molded at room temperature. The mold after release can be heated or cured by chemical action. This method is used in the forming of polytetrafluoroethylene and some high temperature resistant plastics (such as polyimide, etc.). The general process is three steps of billet sintering cooling.4. transfer molding. Transfer molding is a molding process for thermosetting plastics. When molding, the mold is heated and softened in the heating chamber and then pressed into the mold cavity where it has been heated. According to the different types of transfer molding equipment form: trap type; the tank; the piston.The requirement of plastic molding for transfer molding is that the plastic should have a greater fluidity before reaching the curing temperature, and the curing rate must be faster at the curing temperature. Phenol, melamine, formaldehyde and epoxy resins can meet this requirement.Transfer molding has the following advantages: less waste edge products, can reduce the processing quantity; second molding with fine or brittle insert and perforation of the products, and can keep the insert and the hole position is correct; the product performance is uniform, accurate size, high quality; the mould wear small. The disadvantage is that the manufacturing cost is high compression mold die; the plastic loss; the fiber reinforced plastics for fiber orientation and anisotropy; and around the insert around the plastic, sometimes due to melting is not strong and make the products according to the strength reduction.
What are the packaging machines that use temperature control watches?
A lot of heating machines have to use thermostat
What's the fastest packing machine?
Depending on the characteristics of your material, the speed is adjustable!
Color code positioning of packaging machinery
The use of the printed color packaging materials, photoelectric switch (available on the color electric eye tracking and positioning), through the control system to drive the stepper motor rotation and color according to the distance between the automatic stop, to complete and accurate packaging products logo.
What is the name of the paper used in packing machine parts and yellow?
Vapor phase rust proof paper is coated with vapor phase corrosion inhibitor on the base of antirust base paper (surface like kraft paper, but with chloride ion and sulfate ion limit requirement)
Three dimensional packaging machine, transparent film packaging machine, transparent film three-dimensional packaging machine industry standards
English Name: Transparent, film, fold, wrapping, machineClassification: machinery, general machinery and equipment, >>J83 storage equipment, loading and unloading machineryICS classification: packing and conveying of goods, >>55.200 packaging machinery
The difference between wrapping and bagging is explained from the packaging method, and the difference of the working principle of the packaging machine is analyzed
Wrapping of objects of different shapes according to their appearance.
Ask a mechanical problem, the waste film recycling in the packaging machinery is a new film packaging, after cutting, then use the roller to recycle the waste film. Encounter a
It is suggested that displacement or velocity should be detected on the transport path of the membrane. Is a more reliable control signal. Of course, you can also detect the angular speed of the recovery drum, such as a code dial and other simple institutions.