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塑料粘接 · T00388428

 Plastic bonding塑料粘接

  Note:提示：
♦  Applicable to both thermoplastic and thermoset plastic parts, all thermoplastic parts must use polyurethane-containing adhesives. Reinforcement tape can be used on welds and fracture cracks to ensure initial ductility.适用于热塑性塑料件和热固性塑料件，所有热塑性塑料部件必须使用含聚亚安酯的粘合剂。可在焊缝和破碎裂缝上使用加强带，来确保最初的延展性。
1. Clean the area to be repaired1. 清洗待修理部位
1 Before repairing, clean both sides of the plastic part with a high-pressure water cleaner and allow to dry.在修理前，用高压水清洁器清洁塑料部件的两侧，然后进行干燥。
2 Use a plastic cleaner to clean the surface to be repaired.使用塑料清洁器清洁待修理表面。
Graphic
2. Preprocessing2. 预处理
1 Pre-treatment of scratches:刮痕的预处理：
a. Use an orbital grinder and sandpaper to smooth out the scratches or cracks thoroughly.使用轨道砂轮机和砂纸将刮痕或裂缝彻底打磨平整。
Sandpaper Type: Coarse Sandpaper砂纸类型：粗砂纸
b. Finely sand with an orbital grinder and sandpaper.用轨道砂轮机和砂纸精细打磨。
Sandpaper type: fine sandpaper砂纸类型：细砂纸
c. Use a plastic cleaner or paper towel to thoroughly clean the repair surface.使用塑料清洁器或纸巾彻底清洁修理表面。
d. Spray plastic primer evenly over the repair surface.在修理表面上均匀喷涂塑料底漆。
2 Pretreatment of cracks.裂缝的预处理。
a. Use an angle grinder or belt grinder to grind the front side of the crack, with a grinding surface width of 40~60mm.用角度砂轮机或带式砂轮机来打磨裂缝的前侧，打磨表面宽度为40~60mm。
b. Re-sand with an orbital grinder.用轨道砂轮机重新打磨。
Sandpaper type: fine sandpaper砂纸类型：细砂纸
c. Use a 3mm drill bit to drill holes at the ends of the cracks to prevent them from extending.在裂缝的末端用3mm的钻头钻孔以防裂缝延伸。
d. Sand along the inside of the crack.沿着裂缝内侧打磨。
e. Use a plastic cleaner or paper towel to clean the area to be repaired.使用塑料清洁器或纸巾清洁待修理部位。
f. Spray plastic primer over the repaired area.在修理部位喷涂塑料底漆。
3. Bonding3. 粘接
1 Scratch bonding.刮痕粘接。
a. After cleaning and spraying the primer, fill the scratches with adhesive.在清洁并喷涂了底漆后，用粘合剂填充刮痕。
b. Use a flexible plastic feeler gauge to spread and level the adhesive.用一柔性塑料塞尺摊开并平整粘合剂。
c. Dry with an infrared heater or dryer.用红外线加热器或干燥器进行干燥。
2 Bonding repairs cracks.粘接修补裂缝。
a. Cover the front side of the crack with PE sheet or tape.用PE薄片或胶带覆盖裂缝的前侧。
b. Starting from the inside, fill the weld with plastic adhesive.从内侧起，用塑料粘合剂填充焊缝。
c. At the same time, a wider reinforcing fiber is also filled into the weld together with the adhesive.同时一根较宽的加强纤维也和粘合剂一起填充到焊缝内。
d. Reinforce the ends of the crack by attaching metal straps that snap into place on the plastic part.通过附加嵌接在塑料部件上的金属带来加固裂缝的末端。
e. Trim the upper surface of the reinforcement material to the same height as the entire surface to be repaired.将加固材料的上表面与整个待修理表面修整成同样的高度。
f. Dry with an infrared heater or dryer.用红外线加热器或干燥器进行干燥。
g. The PE sheet is used to prevent adhesive from escaping from the front side of the crack.PE薄片用来防止粘合剂从裂缝前侧中溢出。
h. Remove the PE sheet after the adhesive dries.在粘合剂干燥后取下PE薄片。
i. Apply adhesive to the front side of the area to be repaired.在待修理部位的前侧涂抹粘合剂。
j. Use an infrared heater or dryer for drying.使用红外线加热器或干燥器进行干燥。
k. Cool the adhesive to room temperature to prevent the adhesive from coming off and the sandpaper from overheating while sanding.将粘合剂冷却到室温以防在打磨时粘合剂脱落和砂纸过热。
  Note:提示：
♦  When large-scale cracks or chipping occur, reinforcement of the area to be repaired can improve torsional strength. For this purpose, suitable reinforcing materials (such as metal strips, reinforcing fibers) are used to attach to the back of the part.在发生大面积裂缝或碎裂时，对待修理部位进行加固可提高抗扭强度。为此，合适的加固材料(如金属带、加强纤维)被用来附加在零件背面。
4. Polishing4. 打磨
1 Use an orbital grinder to sand away any protrusions of adhesive.使用轨道砂轮机打磨掉粘合剂的突出部分。
Sandpaper type: Coarse sandpaper.砂纸类型：粗砂纸。
2 Manually trim sagging and crooked areas.手动修整下陷和弯曲的区域。
3 Use a sanding pad to rub the paint surface.使用打磨衬垫来摩擦漆面。
4 Clean plastic parts thoroughly.彻底清洁塑料部件。
5 Spray plastic primer after drying thoroughly.彻底干燥后喷涂塑料底漆。