今天山東無縫鋼管廠來給大家簡單介紹（shào）一下無（wú）縫管表麵損傷和夾帶外來物的清洗方法。

  Today to give you a brief introduction of shandong seamless tube mill of seamless tube surface damage and entrained foreign cleaning method.

  1、粉塵

  1, dust

  製作經常是在有粉塵的（de）場地進行，空氣中常帶有許（xǔ）多粉塵，它們不斷地落在設備表麵。它們可以用水或堿性溶液去除掉。不過，有附著力的塵垢（gòu）需要高（gāo）壓水或蒸氣進（jìn）行清理。

  Production is often with the help of dust venue, often with a lot of dust in air, they constantly fall on the surface equipment.They can use water to get rid of or alkaline solution.However, there is adhesion of dirt need high pressure water or steam to clean up.

  2、浮鐵粉或嵌入（rù）的（de）鐵（tiě）

  2, iron powder or embedded iron

  在任何表麵上，遊離（lí）鐵都會生鏽並使不鏽鋼產生腐（fǔ）蝕。因此，必須清除。浮（fú）粉一般可隨（suí）粉塵（chén）一起清除掉。有些粘著力很強，必須按嵌入的（de）鐵處理。除粉塵外，表麵鐵的來源很多，其中包括用普通碳鋼鋼絲刷清（qīng）理和用以（yǐ）前在普碳鋼，低合金鋼（gāng）或鑄鐵件上使用過（guò）的砂子、玻（bō）璃珠或其（qí）它磨料進行噴（pēn）丸處理，或在不鏽（xiù）鋼部件及設備附近對前麵提到的非不鏽鋼製品（pǐn）進行修磨。在下料（liào）或吊過過程中如果不對不鏽鋼采取保護措施，鋼絲繩、吊具和工作台麵上的鐵很容易嵌入或玷汙表（biǎo）麵。

  On any surface, free iron will rust and corrosion of stainless steel.Therefore, must be removed.Float pink usually can be removed with dust.Some adhesion strong, must according to the embedded iron processing.In addition to the dust, the source of the surface of iron, including using ordinary carbon steel wire brush to clean up and used in carbon steel, low alloy steel or cast iron pieces of the used sand, glass beads or other abrasive shot peening treatment, or in the vicinity of stainless steel parts and equipment of the previously mentioned the grinding stainless steel products.Next or hanging if wrong in the process of stainless steel material to take protective measures, on the surface of the steel wire rope, sling and workbench iron embedded or polluted surface easily.

  訂（dìng）貨要求（qiú）和製作後檢查可以防止（zhǐ）並發現（xiàn）遊（yóu）離鐵的存在，ASTM標準（zhǔn）A380[3]規定了檢查不鏽鋼表麵鐵或鋼微粒的鐵鏽試驗法。當要求絕對不能有鐵存在的時候，應該使用這種檢驗方法。如果結果令人滿意，應用幹淨的純水（shuǐ）或硝酸對（duì）表麵進行洗滌（dí），直到深藍色完全（quán）消失。

  Order and production after check can prevent and found that the existence of free iron, ASTM standards A380 [3] the examination stainless steel rust test method of particles on the surface of iron or steel.When iron requirements must not exist, you should use this method of inspection.If the result is satisfactory and application of clean water or nitric acid washing was carried out on the surface, until the dark blue disappear completely.

  正如標準A380[3]指出的如果鐵鏽試驗溶液不能全部清除幹淨，不鏽鋼管不推薦在設（shè）備的工藝表麵，即用來生產人類消費品的直接接觸表麵采用這種試驗方（fāng）法。比較簡單的試驗方法是在水（shuǐ）中暴露12~24小時，檢查是否有鏽（xiù）斑。這種試驗靈敏性差，而且耗時。這些都是檢測試驗，不是清理方法。如果發現有鐵存（cún）在，必須用（yòng）後麵介（jiè）紹的化學和電化學的方法進行清理。

  As standard A380 [3] notes if the rust test solution can't clear clean, all stainless steel tube on the surface of the craft that equipment is not recommended, namely to produce human consumer direct contact surface using this test method.Relatively simple test method is exposed 12 ~ 24 hours in the water, check for a rusty spot.This kind of test sensitivity is poor, and time-consuming.These are test, not a cleaning method.If found to have iron exists, must use the introduction of the chemical and electrochemical methods to clean up.

  3、劃痕

  3, scratch

  為了防止（zhǐ）工藝潤滑劑或生成物或汙物積留，必須對劃痕和其它粗糙（cāo）表麵進行（háng）機械清理。

  In order to prevent technology lubricant products or dirt deposition, scratches and other rough surfaces must be mechanical cleaning.

  4、熱回火色和其它氧化層

  4, hot temper color and other oxide layer

  如果在焊接或修磨過程中不鏽鋼在空氣中被加熱到一定的高溫，焊縫兩（liǎng）側、焊縫的下表麵和（hé）底部都會出現（xiàn）鉻氧化物熱回火色（sè）。熱回火（huǒ）色比氧化保護膜薄，而且明顯（xiǎn）可（kě）見。顏色決（jué）定於厚度,可呈見彩虹（hóng）色（sè）、藍色、紫色到淡黃色和棕色。較厚的氧化物一般為黑色。它是（shì）由於在高溫（wēn）或長時間在較高度下停留所致。當出（chū）現任何一種這類氧化層時，金屬表麵的鉻含量都會降低，造成這些區域的耐腐蝕性降低。在這種情況（kuàng）下，不僅要消除熱回火色和其它氧化層，還（hái）應對它們下麵（miàn）的貧鉻金屬層進行清理。

  If in the process of welding or grinding stainless steel in the air is heated to a high temperature, on both sides of weld, under the surface and bottom of the weld will appear chromium oxide thermal heat tint.Hot temper color than thin oxidation protective film, and visible.Color depends on the thickness, can see the rainbow color, blue, purple or light yellow and brown.Thicker oxide for black.It is because in the high temperature or long time stay in relatively high.When any one kind of this kind of oxide layer, the chromium content of the metal surface will reduce, which reduces the corrosion resistance of these regions.In this case, not only to eliminate the thermal heat tint and other oxidation layer, also deal with them to clean up the poor chromium metal layer.

  5、鏽斑

  5, rusty spot

  製作前或製作過程中有時會看（kàn）到不鏽鋼產品或設備上生鏽，這說明表麵受到嚴重汙染。設備投入（rù）使用（yòng）前必（bì）須（xū）把鏽清除掉（diào），徹底清理過的（de）表麵應通過鐵試驗和/或水試驗進行檢驗。

  Before the production or manufacturing process sometimes see rust on the stainless steel product or equipment, it shows that surface severely contaminated.Investment of equipment before use must get rid of rust, surface should be thoroughly cleaned by iron test experiment and/or water.

  6、粗糙的研磨和機加工

  6, coarse grinding and machining

  研磨和機加工都會造成表麵粗糙，留有凹槽，重疊和毛刺等缺陷。每種（zhǒng）缺陷也可能使金屬表麵損傷到一定深度，以至於受損傷的金屬（shǔ）表（biǎo）麵無法通過酸洗，電拋（pāo）光或噴丸等方法清理掉。粗糙表麵能夠成為發（fā）生腐蝕和沉（chén）積生（shēng）成物的發源地，重焊前（qián）清理焊縫缺陷或清除多餘的焊縫加強高都不能用粗磨進行（háng）研磨。對後一種情況，應再用細磨料研磨。

    Rough surface grinding and machining can create, leave grooves, overlapping and defects such as burrs.Each defect may also make the metal surface damage to a certain depth, so that damage to the metal surface through pickling, electrolytic polishing and shot peening method.Rough surface can become the birthplace of products, erosion and deposition heavy cleaning before welding defects or remove excess weld high strengthen can use coarse grinding for grinding.In the latter case, should with fine abrasive grinding.