伊人久久大香线蕉AⅤ色,午夜精品乱人伦小说区 ,色五月丁香五月综合五月亚洲,国产一产区二产区

電泳技術(shù)

分享電泳設(shè)備設(shè)計(jì)制造服務(wù)及電泳漆技術(shù)咨詢(xún)

當(dāng)前位置：首頁(yè) ? » 電泳設(shè)備電泳設(shè)備工藝 ? 正文

電泳涂裝烘干系統(tǒng)簡(jiǎn)介中英對(duì)照版

1479 人參與 2011年11月14日 08:04 分類(lèi) : 電泳設(shè)備電泳設(shè)備工藝評(píng)論

電泳涂裝烘干系統(tǒng)簡(jiǎn)介中英對(duì)照版 ?Baking烘干 Proper baking is the final step in producing a quality electrocoat film.? This procedure involves raising the vehicle to a sufficiently high temperature to cure all surfaces in a dirt-free environment. 適當(dāng)?shù)暮娓墒巧a(chǎn)優(yōu)質(zhì)電泳漆膜的最后一道工序，這個(gè)工序既是將車(chē)身在無(wú)塵環(huán)境中升到足夠高的溫度，使所有表面固化。 Oven burners can transfer heat to the vehicle by two methods: 烘干爐燃燒器將熱量傳送到車(chē)身上是靠以?xún)煞N常規(guī)方法： High velocity convection is accomplished by circulating air through the oven and across the burners at high velocity to achieve rapid transfer of the heat to the vehicle. The rapid movement of the air across the body brings the metal to the curing temperature of the paint very efficiently. However, during the early curing stages, the paint film is quite sticky and will retain dirt particles which come in contact with it. Air filtration after the burner helps to maintain oven cleanliness.? Regular periodic oven cleaning is necessary to remove dust accumulations which can be blown around by the convection air. Cleaning should include oven walls, floor, and air plenums; it can be done by sweeping, vacuuming, or washing. ?高速對(duì)流，循環(huán)空氣以高速度通過(guò)烘干室和穿過(guò)燃燒器，以達(dá)到向車(chē)身迅速地傳遞熱量。空氣通過(guò)對(duì)車(chē)身的快速流動(dòng)將金屬提升到能使油漆有效固化的溫度。然而,在固化的最初階段，漆膜相當(dāng)粘，且會(huì)將與其接觸的塵粒粘住，在燃燒器之后加空氣過(guò)濾有助于保持烘干室的清潔度。定期地進(jìn)行烘干室清理是必要的以除去可被對(duì)流空氣吹起的沉積灰塵。清理要包括爐壁板，底板及風(fēng)道，可以用清掃，真空吸塵或擦洗的方法進(jìn)行。 Radiant heating is frequently used for heat transfer to the vehicle.? In this technique, a special oven wall is heated several hundred degrees above the cure temperature of the coating. The heat is transferred to the vehicle by the same process whereby a heating lamp warms the human body. An advantage of this technique is that little air movement is required to promote curing of the electrocoat. Thus, little dirt is permitted to adhere to the sticky paint film. This method of radiant heating is used in the first 30- 40% of the oven to "skin" the paint and prevent it from picking up dirt in the more efficient convection zones of the oven. 輻射加熱，常被用來(lái)向車(chē)身傳熱。在這種技術(shù)中，一特殊的烘干爐壁板加熱到高于涂層固化溫度幾百度，以與加熱燈為人體取暖同樣的方式將熱量傳遞給車(chē)身。這種技術(shù)的優(yōu)點(diǎn)是可為促進(jìn)電泳漆表面固化并只需要少量的空氣流動(dòng)，這樣使粘到漆膜上的灰塵大大減少，在前端30~40%的烘干室長(zhǎng)度內(nèi)用輻射加熱方法形成表面，以使漆膜“表面”在烘干室高效對(duì)流區(qū)不再粘上灰塵。 Completeness of cure is best determined by solvent wiping with methyl isobutyl ketone (MIBK). Ten double rubs with a clean cloth with MIBK should produce no discoloration on the cloth and no dulling of the rubbed paint. Incomplete cure can result in poor chip resistance for subsequent coatings and film distortions which cause poor appearance. Severe undercure of electrocoat can prevent additional coatings from curing. Heavy metal areas should be used for cure evaluation since they require more heat time for curing than do thin metal panels. 測(cè)定漆膜漆膜是否完全固化，最好的方法是用甲基異丁基酮（MIBK）溶劑擦拭。用干凈的帶有甲基異丁基酮的布在漆膜表面上往復(fù)擦十次，應(yīng)不在布上染色，且被擦的漆面不模糊。不完全的固化會(huì)導(dǎo)致涂層的耐沖擊性能不佳，漆膜變形引起的外觀不良等。電泳漆嚴(yán)重固化不良時(shí)會(huì)阻礙后續(xù)涂層的固化。對(duì)厚金屬板區(qū)的固化加熱時(shí)間要比薄金屬板區(qū)長(zhǎng)，對(duì)厚金屬板區(qū)工件要進(jìn)行固化評(píng)定。因?yàn)楹癜鍏^(qū)寬固化加熱時(shí)間要比薄金屬區(qū)長(zhǎng)。 Baked vehicles can be force cooled in an exhausted enclosure to prevent smoke in adjacent areas. High velocity ambient air directed at the body works well. Reducing the metal temperature to below 180 F . will minimize smoke evolution. The use of cool-off zones is not required for proper electrocoat performance and is usually dictated by the time from oven exit to the first manual sealer application. The use of cool-off zones, therefore, must be determined on an individual plant basis. 烘干后的車(chē)身可在排風(fēng)的封閉間內(nèi)強(qiáng)制冷卻，以防煙霧彌漫影響鄰區(qū)。室溫空氣高速對(duì)車(chē)身吹拂效果好，把金屬溫度降到１８０Ｆ以下，可將煙放出量減到最少。就電泳涂層特性而言，不要求用冷卻段，一般都是根據(jù)從烘干室出口到第一個(gè)人工密封工位的時(shí)間提出要求。因此必須根據(jù)具體的工廠情況來(lái)確定。

本公司可以承接電泳生產(chǎn)線和各類(lèi)涂裝生產(chǎn)線設(shè)計(jì)、制造、施工，為您提供一流的涂裝生產(chǎn)線生產(chǎn)制造服務(wù)，讓您更省時(shí)、省力、省心。