當雙組份膠在混合過程中就發生局部固化時，膠槍打出來的膠就會出現結皮或硫化現象。雙組份打膠機在這里提示大家，出現這一現象的原因主要有三種：
When local curing occurs in the mixing process of two-component rubber, crust or vulcanization will occur in the rubber produced by rubber gun. There are three main reasons for this phenomenon:
⑴膠體顏色較黑，固化快時，可能是由于B組分比例過高，過多的催化劑促使固化速度加快。此時，需要適當降低B組分的比例，將結皮或硫化膠沖洗干凈后施工；
(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.
⑵若打膠過程中伴有出膠慢的現象時，可能是混合芯長時間未清洗或清洗不有效，膠體結皮堵塞管道。因此，定期清洗靜態混合器是很有必要的。
(2) If the gelling process is accompanied by slow gelling, it may be that the mixed core has not been cleaned for a long time or is not thoroughly cleaned, and the gel crust blockages the pipeline. Therefore, it is necessary to clean the static mixer regularly.

⑶當固化和出膠速度均無異常，而打出的膠仍有結皮或硫化現象時，則可能是設備停機時間較長，膠槍未清洗或洗槍不夠有效，需要將結皮或硫化膠沖洗干凈后后施工。
(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.
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