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
The scale cleaning of natural gas mold temperature machine can use chemical cleaning method
announcer:
Speaking of the chemical cleaning method of the scale of the natural gas mold temperature machine, the natural gas mold temperature machine is to a large extent for the hydraulic oil condenser pipe and the cooling water channel of the barrel inlet of the cylinder, and the cooling water channel of the injection mold. There is serious scale on the surface. At this time, we actually need to pay attention to manual brushing or chemical cleaning directly.

    When cleaning the scale of the natural gas mold temperature machine, the inner surface of the cooling water channel is generally not contaminated by oil, and there is no need for degreasing and alkaline cleaning. At this time, in fact, it can be directly neutralized after pickling. First of all, we should pay attention to the fact that the outlet of the cooling channel should be closed. Next, we should pay attention to adding 10% soda solution directly from the inlet. For its temperature, it will be at 30 ~ 40 ℃, soaking time is 15min, so that it is neutralized, and then, in fact, we can directly connect it with high-pressure water and rinse for 10min.

    The scale cleaning of natural gas mold temperature machine actually means that after pickling and neutralization, in order to prevent the rust phenomenon on the inner surface of the metal, we can actually use compressed air to dry it directly .

    Regarding the scale cleaning of the natural gas mold temperature machine, we can actually use the acid cleaning method. At this point, we should pay attention to the fact that the cooling water channel outlet should be closed. Next, in fact, it can be directly If necessary, add 20%-30% of a dilute hydrochloric acid or 15%-20% of a dilute sulfuric acid solution from the water inlet.

    The acid cleaning method of the scale of the natural gas mold temperature machine is actually soaked directly at room temperature for about 40 to 360 minutes. At the same time, it can actually be tapped or vibrated. At this time, it is actually It can accelerate the shedding of scale on the natural gas mold temperature machine. Next, in fact, it will be directly connected to high-pressure water for washing until no scale particles flow out.
熟妇人妻一区二区三区四区| 天堂中文8资源在线8| 18禁在线无遮挡免费观看网站| 大尺度无遮挡激烈床震网站| 久久大香萑太香蕉AV黄软件| 久久国产免费直播| 国产69精品久久久久99尤物| 成人无码视频在线观看免费播放| 最新AV中文字幕无码专区| 极品少妇被猛得白浆直喷白浆小说| 日韩欧美亚洲综合久久| 精品国产乱码久久久久APP下载| 玩弄人妻少妇精品视频| 女厕精品合集KTV偷窥| 亚洲欧洲精品饰品推荐有限公司| 红杏亚洲影院一区二区三区| 人妻被快递员白玩一下午| 城中村快餐嫖老妇对白| 久久99精品国产99久久6尤物| 一个人看的www视频免费观看| 欧美日韩精品一区二区在线播放| 色老板亚洲视频在线观| 久久精品人妻中文系列葵司| 插我一区二区在线观看| 天天做天天爱夜夜爽| 中国大陆高清aⅴ毛片| 免费看国产美女裸体视频| 亚洲av男人的天堂在线观看| 青青草97国产精品免费观看| 黑巨人与欧美精品一区| 国产精品 亚洲一区二区三区| 欧美肥妇多毛bbw| 欧美精品视频在线观亚洲| 亚洲AV无码专区在线电影APP| 99久久国语露脸精品国产色| 午夜两性刺激视频免费看| 亚洲七久久之综合七久久| 麻豆一二三区精品蜜桃| 窝窝午夜看片成人精品| 精产国品一二三产区9977| 亚洲成AV人最新地堂无码|