A summary of common basic knowledge in the adhesive industry (Ⅵ)

23. High frequency bonding: A method in which the assembly is placed in a high-frequency (several megacycles) strong electric field and the heat generated by electrical induction is used for bonding.

24. Curing time (cure time): The time required for the adhesive in the assembly to cure under certain conditions such as temperature and pressure.

25. Hardening time (setting time; set time): The time required for the adhesive in the assembly to harden under certain conditions such as temperature and pressure.

26. Curing temperature (cure temperature): the temperature required for adhesive curing.

27. Setting temperature (set temperature): The temperature required for the adhesive to harden.

28. Room temperature curing, curing within the normal temperature range.

29. Post curing (post cure): further processing (such as heating, etc.) of the initially cured bonded parts.

30. Overcure: When the adhesive in the assembly is cured, it exceeds the bonding process requirements (too high temperature, too long time, etc.), causing the bonding performance to deteriorate.

31. Undercure: A phenomenon in which the adhesive is insufficiently cured, causing poor bonding performance.

32. Bag molding: A method of bonding using fluid pressure. Generally, a flexible membrane or bag (sometimes connected to a rigid mold) is pressurized by air, steam, water, etc. or vacuum, to completely cover the material to be bonded. Irregularly shaped bonded parts can be bonded by applying uniform pressure. Processing machinery and coating equipment

33. Adhesive mixer: a mechanical device used to mix or prepare adhesives.

34. Glue gun: An instrument that sprays or injects adhesive onto the surface of adherends under pressure.

35. Applicator: A device that applies adhesive to the surface of an adherend.

36. Squeegee, doctor blade, doctor bar (doctor knife; doctor blade; doctor bar): an instrument that can adjust the thickness of the glue layer and evenly coat it on the rubber coating roller or the surface to be coated.

37. Glue regulating roller (doctor roll): A roller that adjusts the glue thickness by wiping the foam produced by forward or reverse rotation at different surface speeds.

38. Impregnator; saturator: a device for impregnating paper, fabric and the like with adhesive. It generally consists of a rotating roller, a dipping tank, a pressure roller, a scraper and a drying device.

39. Curing fixture: a positioning and pressurizing device used for assembly parts during curing.

40. Filler sheet: a deformable or elastic sheet material. When placed between the assembly to be bonded and the pressurizer, or distributed between the stacks of assemblies, it helps the bonding surface to be pressed evenly.