成品人视频ww入口,东北老富婆高潮大叫对白,99精品国产在热久久无毒不卡,一区二区三区内射美女毛片

News

Current Position: Home > News
How to clean the scale left by the mold temperature machine with acid?
announcer:
Regarding the acid cleaning of the mold temperature machine, we actually need to pay attention to the need to close the cooling water outlet, and then we can actually add about 20 directly from the inlet of the mold temperature machine. %~30% of a dilute hydrochloric acid, or 15%~20% of a dilute sulfuric acid solution, soaked at room temperature for about 40~360min, at the same time, we can tap or vibrate to accelerate the scaling off.

    Next, for the acid cleaning of the mold temperature machine scale, we actually should pay attention to that it should be directly connected to the high-pressure water to rinse, until it does not run out of scale particles, as far as the rinse time is concerned, probably That is about 30min. If the intervention of pickling once does not achieve the effect, we can actually pickle again, knowing to clean the scale again.

    If the scale of the condenser of the mold temperature machine is more serious, it can actually be soaked with a special descaling agent. In this regard, we should pay attention to the need to poke every hour. Until it produces no gas.

    Next, let's briefly talk about the physical cleaning method of mold temperature scale. The characteristics of the physical cleaning method are actually very simple. In this respect, we will actually find that it will include air cleaning and high pressure water cleaning. In addition, it refers to manual stabbing. In terms of their characteristics, it is actually different.

    Blowing and cleaning of the scale of the mold temperature machine actually means that after manual brushing, we actually will chase and use a high-pressure air higher than the cooling water pressure by 0.15 to 0.2 MPa through the bypass valve of the mold temperature machine. As the cooling water is blown directly into the cooling water channel, a series of high-pressure gas-water flushes are carried out. In this way, the sediment on the inner surface of the cooling water channel can be caused to crack or fall off.
成年女人片免费视频播放A| 欧美成人免费全部| 久久综合久久综合九色| 久久国产精品成人免费| 中文字幕亚洲一区二区三区| 丰满少妇a级毛片野外| 精品卡通动漫亚洲AV第一页| 美女内射毛片在线看免费人动物| 中文字幕无码肉感爆乳在线| 99久久久无码国产麻豆| 欧美又大粗又爽又黄大片视频| 欧美日韩精品视频一区二区| 国产欧美日韩va另类在线播放| 又湿又紧又大又爽A视频国产| 国产精品久久久久av福利动漫| 日本高清中文字幕免费一区二区| 熟女系列丰满熟妇AV| 国产日韩欧美不卡在线二区| www国产亚洲精品久久网站| 国产精品久久久久精品小草| 99久久人人爽亚洲精品美女| 国产亚洲婷婷香蕉久久精品| 国产亚洲成av人片在线观黄桃| 久久久久久精品免费免费WEI| 无码尹人久久相蕉无码| 一二三四在线观看免费高清视频| 中文无码人妻有码人妻中文字幕| 狠狠色丁香婷婷综合潮喷| 最近最好看的2018中文字幕电视剧| 国产女人高潮视频在线观看| 久久这里有精品国产电影网| 国产日产韩国精品视频| 亚洲VA久久久噜噜噜久久无码| 少妇高潮惨叫久久久久电影| 老司机久久精品最新免费| 好吊色欧美一区二区三区视频| 久久香蕉国产线看观看精品YW| 国产精品久久久久久久网| 精品无码午夜福利理论片| 冠希实干阿娇13分钟视频在线| 亚洲性无码av在线|