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.
精品久久久久久无码人妻VR| 2021久久精品国产99国产精品| 中文字幕无码日韩中文字幕| 最新亚洲人成无码网站| 国产男女性潮高清免费网站| 狠狠色噜噜狠狠狠7777米奇| 亚洲真人无码永久在线观看| 野花视频在线观看免费观看8| 国产乱码一二三区精品| 丁香五月亚洲综合深深爱| 欧美性狂猛xxxxxbbbbb| 国产无套粉嫩白浆在线观看| 国产产无码乱码精品久久鸭| 麻豆国产精品无码视频| 337P日本大胆欧洲亚洲色噜噜| 亚洲日韩乱码一区二区三区四区| 亚洲电影在线观看| 亚洲精品国产精品国自产观看| 久久精品水蜜桃av综合天堂| 日本japanese少妇高清| 老色鬼在线精品视频在线观看| 99久久婷婷国产综合精品| 日本欧美一区二区三区在线播放| 区二区三区国产精华液区别大吗| 久久精品国产精品国产精品污| 亚洲AV日韩AV高潮噴潮无码| 真人无码作爱免费视频网站| 久久精品噜噜噜成人AV| 中文字幕精品亚洲无线码一区| 香蕉影院在线观看| 纯肉无遮挡H肉视频在线观看| 国产精品福利在线观看无码卡一| 99日本精品永久免费久久| 中文无码精品一区二区三区| 国产福利精品一区二区| 日本在线观看| 久久婷婷色香五月综合缴缴情| 精品国产乱码一区二区三区| 在线观看国产区亚洲一区| 国产一区二区四区在线观看| 777爽死你无码免费看一二区|