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General ventilation engineering and air conditioning engineering are inseparable from the opening of the air duct, and there are many strict requirements for the anticorrosion or color of the project, which requires anti-corrosion coating or paint. Precautions for painting of ventilation duct system are as follows:

1.所運(yùn)用的油漆號(hào)有必要符合設(shè)計(jì)要求或施工質(zhì)量查驗(yàn)標(biāo)準(zhǔn)，并具有產(chǎn)品出廠合格證。油漆有有用運(yùn)用時(shí)刻的約束，有必要在有用期內(nèi)運(yùn)用，如已超過規(guī)則時(shí)刻，應(yīng)送技能查驗(yàn)部分鑒定，承認(rèn)合格后方可運(yùn)用。假如因?yàn)橘A存保管欠好，即便在有用期內(nèi)，但有顯著的蛻變，也不能運(yùn)用。

1. The paint number used must meet the design requirements or construction quality inspection standards, and have the product factory certificate. It is necessary to use the paint within the useful period. If it has exceeded the regular time, it should be sent to the skill inspection part for identification, and it can be used only after it is recognized as qualified. If because the storage is not good, even in the useful period, but there is a significant transformation, also can not be used.

2.涂裝前，檢查管道或設(shè)備的外表處理是否符合要求。河南通風(fēng)管道或設(shè)備的外表在油漆前有必要徹底干燥。

2. Before coating, check whether the surface treatment of pipeline or equipment meets the requirements. It is necessary to dry the surface of ventilation pipes or equipment thoroughly before painting.

3.涂刷油漆的環(huán)境濕度不能過低或相對(duì)濕度不能過高，不然會(huì)使油漆蒸發(fā)時(shí)刻過長，影響防腐性能。涂刷油漆時(shí)，有必要掌握環(huán)境條件，一般要求環(huán)境濕度不能低于5攝氏度，濕度要低于85%。

3. The environmental humidity of painting should not be too low or the relative humidity should not be too high, otherwise the evaporation time of the paint will be too long, which will affect the anti-corrosion performance. When painting, it is necessary to master the environmental conditions. Generally, the ambient humidity should not be lower than 5 ℃, and the humidity should be lower than 85%.

4.為了確保涂膜厚度均勻，涂膜后無滲漏、起泡、底部起泡等現(xiàn)象，涂膜稠度不能太大，也不能太小。稠度過大不只糟蹋涂料，而且還會(huì)產(chǎn)生掉落、卷取等現(xiàn)象;稠度過小則會(huì)產(chǎn)生漏涂、起泡、底部起泡等現(xiàn)象。

4. In order to ensure that the thickness of the film is uniform and there is no leakage, blistering and foaming at the bottom after coating, the consistency of the film should not be too large or too small. If the thickness is too large, it will not only spoil the coating, but also cause the phenomenon of falling and coiling; if the thickness is too small, the coating will be missed, bubbling and foaming at the bottom.

5.為使漆膜與漆膜之間結(jié)實(shí)，涂刷2遍防銹時(shí)，有必要比及防銹漆徹底枯燥后進(jìn)行，不然會(huì)產(chǎn)生漆層掉落現(xiàn)象。

5. In order to make the paint film and the paint film firm, it is necessary to compare with the first antirust paint completely dry before painting twice, otherwise the paint layer will drop.

6.鋼板風(fēng)管的防腐作業(yè)一般選用出產(chǎn)前和出產(chǎn)后兩種方式。風(fēng)前的出產(chǎn)管提前鋼板涂上防銹底漆,其長處是質(zhì)量的涂料刷,不漏涂現(xiàn)象,延伸風(fēng)管道的運(yùn)用壽命,和之后的資料不會(huì)在短時(shí)刻內(nèi)生銹,能夠收回,出產(chǎn)后的風(fēng)管漆刷油漆。在制造風(fēng)管的過程中，鋼板有必要先在咬口處涂上防銹底漆。

6. The anticorrosion operation of steel plate air duct generally adopts two ways: before production and after production. Before the wind, the production pipe should be coated with antirust primer in advance. Its advantage is that the quality of the paint brush does not miss the coating phenomenon. It can extend the service life of the air duct, and the subsequent data will not rust in a short time, so it can be recovered. The air duct paint after production is painted. In the process of manufacturing air duct, it is necessary to apply anti rust primer on the bite of steel plate.

7.管法蘭或角鋼加固后,應(yīng)涂上防銹底漆之前與許昌通風(fēng)管道安裝,安裝后,不得涂上防銹底漆,不然,法蘭或角鋼加固和管的觸摸外表將防銹底漆覆蓋,導(dǎo)致腐蝕。

7. After the reinforcement of pipe flange or angle steel, it should be installed with Xuchang ventilation pipeline before applying anti rust primer. After installation, it is not allowed to apply anti rust primer, otherwise, the reinforcement of flange or angle steel and the touch surface of pipe will cover the anti rust primer, which will lead to corrosion.

8.出風(fēng)口和風(fēng)閥的葉片和本體在安裝前應(yīng)根據(jù)工藝條件涂防銹底漆，避免呈現(xiàn)漏涂現(xiàn)象。如安裝涂刷防腐底漆，形成部分位置滲漏，并產(chǎn)生銹蝕。

8. Before installation, the blade and body of air outlet and air valve should be coated with anti rust primer according to the process conditions to avoid coating leakage. If the installation is coated with anti-corrosion primer, the leakage of some positions will be formed and corrosion will occur.

9.管道支架、吊車、支架的防腐作業(yè)有必要在預(yù)制完成后進(jìn)行。管道應(yīng)避免被吊到支架上，然后油漆，這將使支架的部分，起重機(jī)，支架和管道觸摸泄漏涂層。

9. It is necessary to carry out anti-corrosion work of pipe support, crane and support after prefabrication. Piping should be avoided from being lifted onto supports and then painted, which will allow the support sections, cranes, supports and piping to touch the leaking coating.

10.運(yùn)用的各類油漆應(yīng)了解其物理化學(xué)性質(zhì)，并按技能安全條件操作，以避免事端的發(fā)作。

10. The physical and chemical properties of all kinds of paints used should be understood, and the operation should be carried out according to the technical safety conditions, so as to avoid the occurrence of incidents.