打膠過(guò)程中出現花膠現象怎么辦？
運用硅酮構造密封膠時(shí)，在打膠施工現場(chǎng)，經(jīng)常會(huì )遇到這些問(wèn)題：打膠機出膠速度慢，表干拉斷時(shí)間太快或太慢、打膠過(guò)程中呈現“花膠”、 結皮或硫化現象等。
When using silicone to construct sealant, these problems often occur in the construction site of gluing: the gluing speed of gluing machine is slow, the breaking time of surface drying is too fast or too slow, the phenomenon of "floral glue", "crust" or vulcanization appears in the gluing process.
當發(fā)現這些問(wèn)題反響會(huì )想到膠的質(zhì)量問(wèn)題，從而可能由于投訴以要改換的問(wèn)題而攪擾。
When these problems are found, the first reaction will be the quality of the glue, which may be disturbed by complaints and even the problem of brand change.
其實(shí)招致這些現象呈現的狀況還與其他要素有關(guān)，詳細的判別、掃除可能要素并實(shí)驗比照能夠快速的處理以上問(wèn)題，到達事半功倍的效果。
In fact, the situation that causes these phenomena is also related to other elements. Detailed identification, elimination of possible elements and experimental comparison can quickly deal with the above problems and achieve twice the result with half the effort.
1. 打膠機出膠速度慢
1. The gluing speed of the gluing machine is slow.
產(chǎn)品在初次運用時(shí)，打膠機打膠過(guò)程中呈現出膠速渡過(guò)慢的現象，可能緣由有三個(gè)：⑴A組分活動(dòng)性差⑵壓盤(pán)過(guò)大⑶氣源壓力不夠。
When the product is used for the first time, the glue speed of the glue beater passes too slowly during the gluing process, which may be due to three reasons: poor activity of component A, too large pressure plate and insufficient gas source pressure.
針對緣由⑴或緣由⑶，我們能夠經(jīng)過(guò)調整膠槍壓力來(lái)處理；針對緣由⑵，訂購大口徑桶能夠使問(wèn)題得到處理。若出膠速度慢呈現在正常運用過(guò)程中，則可能是混合芯和過(guò)濾網(wǎng)被梗塞，一旦發(fā)現，就需求及時(shí)清算設備。
For reason (1) or reason (3), we can deal with the problem by adjusting the pressure of the rubber gun; for reason (2), ordering large caliber barrels can solve the problem. If the speed of glue production is slow in the normal operation process, it may be that the mixing core and filter are obstructed, once found, the need for timely liquidation equipment.
2. 打膠過(guò)程中呈現“花膠”
2. Presenting "floral glue" in the process of gluing
花膠是由于A(yíng)/B組分膠體混合不平均而產(chǎn)生的，表現為固化慢或部分有白色條紋。
Flower gum is produced by the uneven mixing of colloids of A/B component, which is characterized by slow curing or partly white streaks.
主要緣由有：⑴打膠機B組分管道梗塞⑵靜態(tài)混合器長(cháng)時(shí)間未清洗⑶比例尺松動(dòng)，出膠速度不平均⑷換廠(chǎng)家或牌號未調整設備工藝參數⑸改換后的產(chǎn)品擠出性不好，設備未順應⑹混用不同廠(chǎng)家不同牌號的A、B組分。
The main reasons are: (1) Pipeline infarction of component B of glue beater; (2) static mixer has not been cleaned for a long time; (3) scale loosening; (4) the speed of glue production is uneven; (4) the process parameters of the equipment have not been adjusted by the manufacturer or the brand; (3) the extrusion performance of the product after the change is not good, and the equipment does not conform to (3) mixing different brands of component A and B from different manufacturers.
針對緣由⑴、⑵，能夠經(jīng)過(guò)清洗設備來(lái)處理；針對緣由⑶，則需求檢查比例控制器，并停止恰當的調整；針對緣由⑷、⑸，在保證參數正確的前提下，運用1-2天后設備會(huì )逐步順應。
For reasons_and_, it can be processed by cleaning equipment; for reasons_, it is necessary to check the proportional controller and stop the appropriate adjustment; for reasons_and_, the equipment will gradually adapt after 1-2 days of operation on the premise of ensuring the correct parameters.
3. 打膠過(guò)程中膠體呈現結皮或硫化現象
3. Colloids crust or vulcanize during beating
當雙組份膠在混合過(guò)程中就發(fā)作部分固化時(shí)，膠槍打出來(lái)的膠就會(huì )呈現結皮或硫化現象。呈現這一現象的緣由主要有三種：
When the two-component glue is partially cured during mixing, the glue produced by rubber gun will appear crust or vulcanization. There are three main reasons for this phenomenon:
?、拍z體顏色較黑，固化快時(shí)，可能是由于B組分比例過(guò)高，過(guò)多的催化劑促使固化速度加快。此時(shí)，需求恰當降低B組分的比例，將結皮或硫化膠沖洗潔凈后施工；
(1) When the colloid is black and solidified quickly, it may be due to the high proportion of B component, and the excessive catalyst promotes the speed of solidification. At this time, it is necessary to reduce the proportion of B component appropriately and rinse the crust or vulcanizate before construction.
?、迫舸蚰z過(guò)程中伴有出膠慢的現象時(shí)，可能是混合芯長(cháng)時(shí)間未清洗或清洗不徹底，膠體結皮梗塞管道。因而，定期清洗靜態(tài)混合器是很有必要的。
(2) If the gelling process is accompanied by slow gelling, it may be that the mixing core has not been cleaned for a long time or is not thoroughly cleaned, and the gel crust obstructs the pipeline. Therefore, it is necessary to clean the static mixer regularly.
?、钱敼袒统瞿z速度均無(wú)異常，而打出的膠仍有結皮或硫化現象時(shí)，則可能是設備停機時(shí)間較長(cháng)，膠槍未清洗或洗槍不夠徹底，需求將結皮或硫化膠沖洗潔凈后后施工。
(3) When there is no abnormal curing and tapping speed, and there is still crust or vulcanization in the tapped rubber, it may be that the equipment has been shut down for a long time, the rubber gun has not been cleaned or the gun has not been cleaned thoroughly enough, so it is necessary to rinse the crust or vulcanizate before construction.
4、膠內夾有氣泡
4. Bubbles in glue
普通而言，膠體自身是沒(méi)有氣泡的，膠體夾有的氣泡極可能是運輸或施工過(guò)程中混入了空氣，如：⑴改換膠桶時(shí)排氣未排潔凈；⑵組分在上機后壓盤(pán)未壓下去，招致排泡不徹底。
Generally speaking, the colloid itself does not have bubbles, and the bubbles in the colloid are likely to be mixed with air during transportation or construction, such as: (1) the exhaust is not cleaned when changing the rubber drum; (2) the components are not pressed down on the pressure plate after the machine, resulting in incomplete defoaming.
因而，在運用前排泡要徹底，運用過(guò)程中應正確操作打膠機，保證密封從而阻止空氣進(jìn)入。若疑心產(chǎn)品本身就帶有氣泡，能夠經(jīng)過(guò)蝴蝶實(shí)驗來(lái)停止判別。
Therefore, in the use of front row foam to be thorough, the use of the process should be correctly operated glue beater, to ensure that the seal to prevent air from entering. If you suspect that the product itself has bubbles, you can stop discriminating by butterfly experiments.
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