Shanghai Daoqin Plastics Co., Ltd.

use water will coating material combined spray coating viscosity, can use method: use iron rod or rod will coating material rear 挑起至20公 separation high 处停留观察, liquid in 数秒钟 inner 不断线, is 太稠. if 一离开桶 upper 沿即断线则 is dilute. need in 20公 separation high 处停留时, liquid formed 一直线, 瞬间即断流变 formed lower 滴, this viscosity relatively is combined 适.

空 gas pressure most good control in 0.3-0.4兆帕, if pressure small, liquid defect, surface formed 麻点. pressure large easy 流挂, 且漆雾 large, 既浪费材 material also effect/influence as 者 健康.

nozzle and material 面 距离 generally 以30-40公 separation most is combined 适. 太近容 easy 流挂, 太远漆雾 also easy non-uniform, easy 出现麻点, and nozzle material 面远漆雾 in in dispersion formed 浪费. specific large small, according to coating material types type, viscosity and gas pressure large small adjustment. slow dry spray coating can 远一点, fast dry spray coating, can 近一点; viscosity can 近一点, viscosity dilute can 远一点;空 gas pressure large 时, can 远一点, pressure small can 近一点; 谓近一点远一点 is 指10 mm -50 mm between small scope/range adjustment, ultra- 此 scope/range, difficult obtain 理想 漆 film.

喷枪 can as left right, upper lower 移动, most good is 以10-12米/ separation speed degree uniform as, nozzle need 平直于 material spray coating, amount decrease/reduce toward spray coating. to material 面两端时, 扣喷枪扳 machine need speed lower, make decrease/reduce, is material 面 两端, need 接受两次 above spray coating, is most easy formed 流挂 方. spray coating need lower pressure upper 一道 1/3 or 1/4, this 样才不会出现漏喷 phenomenon. in spray coating fast dry 漆时, one-time 按顺序喷完, 补喷效果不理想.

in outer 空旷 方 spray coating 时, need attention/notes toward (large 风时不宜 as 业), as need in direction, anti 止漆雾 by to already good film upper formed difficult 看 粒状 surface.

先 difficult rear easy, rear outer. high rear low 处, small rear large 面积. this 样就不会造 formed rear 喷 漆雾飞溅 to already good film upper, bad already good film.

结语: 任何 material and material non 完美, water property coating material is 一样, although it has advantages, is also is in more issues, is 我们完 full can through above process and technology improve/increase, has issues can to very good anti.