高壓清洗機(jī)在鋁板帶清洗設(shè)備上的使用近年來(lái)隨著我國(guó)國(guó)民經(jīng)濟(jì)的高速開(kāi)展，航空航天、家用電器、裝修材料及飲料行業(yè)等對(duì)鋁帶、箔的需求越來(lái)越大，帶來(lái)了PS基材、鋁塑帶、電容器箔、制罐料等高精度鋁板帶材的快速開(kāi)展。這些產(chǎn)品對(duì)平直度、潔凈度要求十分嚴(yán)厲，而高精度鋁帶材通常是采用全油冷卻光滑軋制的，其外表殘留很多的軋制油和鋁粉，因而要取得杰出的外表質(zhì)量，有必要清洗去掉其外表殘留物。別的關(guān)于板形要求較高鋁帶材還要進(jìn)行拉彎矯直，拉彎矯直使帶材在拉仲和曲折的效果下，逐步發(fā)生塑性延仲并釋放板材內(nèi)應(yīng)力，以改善板帶材在冷加工時(shí)發(fā)生的波形、翹曲、側(cè)彎和潛在的板形不良等缺點(diǎn)，從矯直工藝考慮，有必要對(duì)帶材外表進(jìn)行清洗。
In recent years, with the rapid development of our national economy, the use of high-pressure cleaner in cleaning equipment of aluminium sheet and strip, the demand for aluminium strip and foil is increasing in aerospace, household appliances, decoration materials and beverage industry, which brings the rapid development of PS base material, aluminium plastic strip, capacitor foil, canning material and other high-precision aluminium sheet and strip. These products have strict requirements for flatness and cleanliness, while high-precision aluminium strips are usually rolled by oil-cooled and smooth rolling. There are a lot of rolling oil and aluminium powder remaining on their surface. Therefore, in order to achieve outstanding appearance quality, it is necessary to clean and remove their surface residues. In order to improve the flatness of aluminium strip during cold working, it is necessary to clean the outer surface of strip firstly considering the straightening process. In addition, the strip should be stretched, bended and straightened. Under the effect of stretching and bending, the plastic extension will occur gradually and the internal stress of the strip will be released to improve the flaws such as waveform, warpage, lateral bending and potential bad shape of the strip.
鋁板帶清洗原理及理論
Cleaning Principle and Theory of Aluminum Plate and Strip
清洗原理鋁板帶在冷軋制過(guò)程中，因軋輥與鋁板外表沖突和碾壓，其外表會(huì)發(fā)生細(xì)微的氧化鋁粉掉落和吸附，軋制油及其順便懸浮成分會(huì)殘留在鋁板外表，對(duì)鋁板帶復(fù)合、涂裝等成品加工形成不利影響。而目_拉彎矯直時(shí)由于帶材在輥上發(fā)生劇烈曲折變形，對(duì)帶材施加的張力一部分轉(zhuǎn)化為帶材對(duì)張力輥的壓力，并終究構(gòu)成沖突力，帶動(dòng)輥組。因而，如果帶材外表未經(jīng)清洗，變形時(shí)氧化鋁粉掉落，隨著油污一同x附在張力輥的輥面，使輥面發(fā)生磨損，并形成鋁板略傷，故有必要通過(guò)專(zhuān)門(mén)的清洗裝置進(jìn)行清洗。
Cleaning Principle Aluminum plate and strip in cold rolling process, because of the surface conflict and rolling between roll and aluminium plate, its appearance will occur slight dropping and adsorption of aluminium oxide powder, rolling oil and its incidental suspended components will remain on the surface of aluminium plate, which will have a negative impact on the processing of aluminium plate and strip composite, coating and other finished products. The tension exerted on the strip is partly transformed into the tension roll of the strip due to the severe bending and deformation of the strip on the roll, which eventually constitutes a conflict force and drives the roll group. Therefore, if the strip surface is not cleaned and alumina powder falls off during deformation, with oil contamination X attached to the roll surface of tension roll, the roll surface will be worn and slightly damaged, so it is necessary to clean the strip by special cleaning device.

清洗就是使用壓力泵對(duì)清洗介質(zhì)加壓，對(duì)帶材外表進(jìn)行非觸摸式噴洗或觸摸式刷洗，使材料外表的鋁粉油污溶解掉落到清洗介質(zhì)中，再經(jīng)擠干輥擠干和高壓空氣吹掃，乃至高溫空氣烘干，以取得潔凈干燥的鋁帶材。一起，通過(guò)不斷彌補(bǔ)清洗介質(zhì)與在線循環(huán)過(guò)濾體系一起使用，使清洗介質(zhì)保持足量和清潔，并大大節(jié)省熱能和清洗介質(zhì)?，F(xiàn)在，鋁加工行業(yè)的拉彎矯直機(jī)常用的清洗介質(zhì)有清洗劑（或稱(chēng)溶劑油）、軟化熱水、化學(xué)溶劑，并各有優(yōu)缺點(diǎn)。
Cleaning is to use pressure pump to pressurize the cleaning medium, to spray or brush the surface of the strip with non-touch type, so that the aluminum powder oil pollution on the surface of the strip can be dissolved and dropped into the cleaning medium, and then dried by extrusion roller, high-pressure air blowing and even high-temperature air drying, in order to obtain clean and dry aluminum strip. Together, by continuously compensating for the use of cleaning media in conjunction with the online circulating filtration system, the cleaning media can be maintained in sufficient quantity and cleanliness, and the thermal energy and cleaning media can be greatly saved. Nowadays, the commonly used cleaning media of STRETCH-BEND Leveller in aluminium processing industry are cleaning agent (or solvent oil), softening hot water and chemical solvent, and each has its own advantages and disadvantages.
高壓水射流的噴發(fā)間隔高壓水射流是靠密實(shí)的流束直接噴發(fā)而發(fā)生巨大的打擊力，密實(shí)射流和直接噴發(fā)二者缺一不可。射流流束以噴嘴中心線呈對(duì)稱(chēng)布置，而是發(fā)散散布，射流一般分為三段。原始段，長(zhǎng)度用L，表明，這段射流的特點(diǎn)是沿軸向的動(dòng)壓力值兒乎是常數(shù)，射流的動(dòng)壓和噴嘴出口的動(dòng)壓是相同的。另一特點(diǎn)質(zhì)地十分密實(shí)，質(zhì)點(diǎn)兒乎不好空氣相混和，因而該段的打擊力較強(qiáng)，首要用于清洗堅(jiān)硬的結(jié)垢物，基本段，長(zhǎng)度用Lz表明，這段射流的特點(diǎn)是空氣開(kāi)始與水射流相混合，構(gòu)成了空穴和渦流，因而該段的打擊力適中，合適各種設(shè)備及物料的清洗。應(yīng)該指出的是隨著該段間隔的加長(zhǎng)，有效打擊力也逐步下降。發(fā)散段，長(zhǎng)度用L3表明，這段射流的特點(diǎn)是空氣與水射流徹底混合，射流徹底霧化，沖擊壓力和射流速度都大幅度下降，在技術(shù)上此段射流已沒(méi)有使用價(jià)值。
The high-pressure water jet has a huge impact force due to the direct eruption of a dense beam. Both dense jet and direct eruption are indispensable. The jet beam is symmetrically arranged in the center line of the nozzle, but diverges and disperses. The jet is generally divided into three sections. In the original section, the length of the jet is L, which shows that the dynamic pressure along the axis of the jet is almost constant, and the dynamic pressure at the top of the jet is the same as that at the outlet of the nozzle. Another characteristic is very dense texture, particles hardly mix well with air, so the striking force of this section is the strongest. It is mainly used to clean hard scales. The length of the basic section shows by Lz that the characteristics of this jet are that air begins to mix with water jet, forming cavities and eddies. Therefore, the striking force of this section is moderate and suitable for cleaning various equipment and materials. It should be pointed out that with the increase of the interval, the effective strike force gradually decreases. In divergent section, the length of L3 shows that the jet is characterized by thorough mixing of air and water, thorough atomization of the jet, dramatic decrease in impact pressure and jet velocity, and the jet in this section has no technical value.
關(guān)于水射流清洗使用，關(guān)鍵在于壓力和流量的選擇與匹配。但在射流的不同噴發(fā)間隔和分散角上，起直接效果的壓力和流量是不同的，別的受?chē)娮旖Y(jié)構(gòu)性能差異的影響，即便在相同的出口壓力和流量條件下，動(dòng)壓在量的散布上也有著較大的差異。
The key to the use of water jet cleaning is the selection and matching of pressure and flow rate. However, the pressure and flow rate of the direct effect are different in different jet intervals and divergence angles. Others are affected by the difference of nozzle structure and performance. Even under the same outlet pressure and flow rate conditions, the dynamic pressure has a great difference in the volume distribution.
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