Potassium hydroxide has a wide range of uses. It is often seen and used in our daily life and consumption. Today we will understand the corrosion characteristics of potassium hydroxide when it stops.

　　平均腐蝕是氫氧化鉀工業(yè)消費設(shè)備常見的腐蝕形態(tài)之一，是電化學(xué)腐蝕的根本形態(tài)，在全部暴露于介質(zhì)中的外表上平均停止，金屬平均減薄，重量逐漸減輕。

　　Average corrosion is one of the common corrosion forms of potassium hydroxide industrial consumption equipment. It is the fundamental form of electrochemical corrosion. Average corrosion stops on the surface of all exposed media. The average metal thins and the weight gradually decreases.

　　石墨化腐蝕是普通鑄鐵中的石墨以網(wǎng)絡(luò)外形散布在鐵素體內(nèi)，在介質(zhì)為鹽水、礦水、土壤或極稀的酸性溶液中，發(fā)作了鐵素體選擇性腐蝕。

　　Graphitization corrosion is that graphite in ordinary cast iron is dispersed in ferrite body in network shape, and selective corrosion of ferrite occurs in saline water, mineral water, soil or extremely dilute acidic solution.

　　磨損腐蝕是由于腐蝕流體和金屬外表的相對運動，惹起金屬的加速毀壞現(xiàn)象，它是腐蝕和磨損、化學(xué)作用和機械作用共同或交替停止的結(jié)果，其腐蝕劇烈水平遠超越單一的腐蝕過程。消費中流體通常是氣、液、固多相并存，在純堿廠呈現(xiàn)的腐蝕常見為沖刷腐蝕、沖擊腐蝕、空泡腐蝕等類型。

　　Wear corrosion is caused by the relative movement of corrosive fluid and metal appearance, which causes the accelerated destruction of metal. It is the result of the joint or alternate stopping of corrosion and wear, chemical and mechanical action. Its severe corrosion level is far beyond the single corrosion process. Fluids in consumption usually coexist in gas, liquid and solid phases. Corrosion in soda plant is usually erosion corrosion, impact corrosion, cavitation corrosion and other types.

　　沖刷腐蝕也稱為進口管腐蝕，主要集中呈現(xiàn)在換熱管列管入口管端處，惹起的主要緣由是流體由大截面進入小截面的列管中，產(chǎn)生的湍流與夾帶的結(jié)晶細粒猛烈的對管端停止沖刷，很快就把管端蝕穿氫氧化鉀沖擊腐蝕產(chǎn)生的緣由是更高流速中產(chǎn)生的一種磨損腐蝕。主要是泵等的轉(zhuǎn)動部件；空泡腐蝕又稱穴蝕，是由于蒸汽泡的構(gòu)成和幻滅而惹起的，是由于金屬設(shè)備的幾何外形不能滿足流膂力學(xué)的請求，部分產(chǎn)生旋渦，氣體在壓力高時幻滅，產(chǎn)生沖擊波小孔和縫隙腐蝕是在金屬外表上產(chǎn)生小孔或縫隙的一種部分的電化學(xué)腐蝕形態(tài)。

　　Erosion corrosion, also known as inlet pipe corrosion, mainly occurs at the inlet end of heat exchanger tubes. The main reason is that the fluid enters the small cross-section tubes from a large cross-section. The turbulence and crystalline fine particles produced by the turbulence stop the erosion at the end of the tubes violently, and the corrosion at the end of the tubes is quickly penetrated by the impact corrosion of potassium hydroxide, which is caused by a kind of wear corrosion at a higher flow rate. Cavitation corrosion, also known as cavitation corrosion, is caused by the composition and disillusionment of vapor bubbles, because the geometrical shape of metal equipment can not meet the requirements of fluid mechanics, part of which produces vortices, gas disillusionment at high pressure, and shock wave small holes and crevice corrosion is an electrochemical corrosion form of part of the metal surface that produces small holes or crevices. State.

　　另外氫氧化鉀的堿性相比于純堿、燒堿等要弱很多，能夠?qū)⑺鲈谛枨蠓莱钡奈锲飞厦妫绕鸬搅朔莱钡淖饔糜謱ξ锲返馁|(zhì)量形成不了影響。但是在一些大型的終年有水的不倡議運用它，假如水和它的比例不成正比的話不只不會起到相關(guān)的作用，還會影響四周的環(huán)境。

　　In addition, the alkalinity of potassium hydroxide is much weaker than that of soda, caustic soda, etc. It can be sprayed on the products that need moisture-proof, which not only plays a moisture-proof role, but also has no effect on the quality of the products. However, some large central authorities with water throughout the year do not advocate using it. If the proportion of water and water is not proportional, it will not only play a related role, but also affect the surrounding environment.