鍍鋅件如何打字

㈠ 鍍鋅板點焊機焊接時需要注意哪些事項

鍍鋅板點焊機常識性的操作技巧及注意事項大多都是隨看隨忘，但是生產內安全又高於一切，容所以我們一定要多注意遵守安全生產規范。下面再來說一下鍍鋅板點焊機的正確使用及焊接完之後的注意事項。

一、焊接注意事項 1、要調節好電極桿的位置後再進行焊接，電極要恰好能夠壓到焊件； 2、先接通冷卻水，然後再接通電源，就可以准備進行焊接了，焊件應置於電極之間； 3、在鍍鋅板點焊機焊接前，要對焊件進行清潔，焊接處不能有臟污、氧化皮等，否則會影響焊機焊接質量和使用壽命；
4、焊接時的參數，比如焊接電流，應根據焊件的情況來定，金屬導電率越高，則焊接電流密度越大，所以焊機焊接時間要縮短。這方面也是需要我們注意的，不能掉以輕心。

二、焊接完注意事項 1、焊機停止工作，應先切斷電源、氣源，最後關閉水源，清除雜物和焊渣濺末。 2、鍍鋅板點焊機長期停用，應在不塗漆的活動部位塗上防銹油指。每月通電加熱30min。更換閘流管亦應預熱30min，正常工作控制箱的預熱不少於5min。

㈡ A3材料零件鍍鋅在圖紙上怎樣標注

A3材料零件鍍鋅的圖紙標注方法有多種，最多最普遍的標注方法就是在技術要求欄中標注，註明方法是 表面處理:鍍鋅

㈢ 什麼是機械鍍鋅

機械鍍鋅是一種與電鍍鋅、熱鍍鋅鐵、達克羅處理不同工藝過程的防腐鍍層。

1、機械鍍鋅主要式藝過程：

（1）、零件前處理、除油、除銹（可線下處理）→水洗→閃鍍置換銅→水洗→機械鍍鋅沉積過渡底層→機械鍍鋅沉積→水拋光→零件倒出分離→熱水洗（或按要求零件表面鉻鈍化、浸相關保護層）→甩干並烘乾→檢測驗收。

（2）、零件前處理、除油、除銹對普通件，可按表面處理常規方法，但對高強鋼基體零件的除銹、除氧化皮，尤為注意，因為不能較長時間採用含氫離子的強酸性化學材料對零件表面進行除銹及除氧皮，這樣處理會對零件鋼基產生一定滲氫影響，所以，應採用機械法來解決：如噴沙、振動光飾、拋丸工藝等。

（3）、閃鍍置換銅：

置換銅層無厚度要求，但要完全覆蓋零件基體表面，它的作用是：提高鍍層結合力、有利於鍍層表面狀況的均勻性、阻擋工藝過程產生的氫對基體的滲入。

（4）、機械鍍鋅沉積過渡底層：

這一工序是針對置換銅層而言，實施步驟是定量的機械鍍鋅專用引發劑和少量的渡覆鋅粉加入滾動的渡筒內，滾動3—5min就可以形成使原來零件基本的銅層轉變為銀灰色的復合鍍鋅層。該鍍鋅層質量的優劣將影響後續加厚渡層的韌性與渡層結合力。

（5）、機械鍍鋅沉積：

定量分批次加入沉鋅引發劑、渡層厚度要求韻鋅粉可在15cm—30min定成此工序，達到工業零件要求的防腐鍍鋅層厚度。

㈣ 鍍鋅管的生產工藝

黑件檢查→掛料→脫脂→漂洗→酸洗→清洗→浸漬助鍍劑→熱空氣烘乾→熱浸鍍鋅→專內外屬吹→冷卻→鈍化和漂洗→卸料→檢驗、修整→打字標識→包裝入庫、運輸。
鍍鋅帶→開卷→拉伸→卷管→焊接→刮疤→鈍化和漂洗→補鋅→定型→打字標識→裁剪→打包→烘乾→過磅。

㈤ 鍍鋅管上打字打不直是怎麼回事

鍍鋅鋼管並不能直接彎曲90度。 彎頭的工作流程方法一般是熱推成型和沖壓成型，這兩種方法可以很好的工件彎曲，但是鍍鋅的工件因為淬火之後硬度極大升高，並不能夠彎曲，否則會使得工件發生折斷。 正確的處理方法是先將工件彎曲然後再鍍鋅，這樣...

㈥ 鋼件產品鍍鋅後激光打字有沒有影響表面的防腐蝕效果

而採用鍍鋅層與油漆塗料聯合保護的方法，才是更積極有效的防腐蝕辦法。同時採用油漆塗料，能使鍍鋅件取得更加豐富的顏色和良好的表面效果。鍍鋅鋼材塗漆前的表面處理1、鍍鋅層在大氣環境中經過曝曬後表面會形成鋅鹽（又稱白銹），在塗裝油漆之前這些鋅鹽必須徹底除盡。最有效的處理方法是輕掃噴砂方法；如果不可能使用噴砂處理，可以使用鋼絲刷或鋼絲絨和充分的淡水，以機械清理和沖洗的辦法除盡鋅鹽。2、未經曝曬的鍍鋅鋼材或鍍鋅鐵皮（又稱白鐵皮）的表面往往沾有油污或防銹油，必須先以溶劑或洗滌劑除去這些油污後，再採用上述的表面處理方法。通常選用底漆稀釋劑將表面擦拭乾凈。需要強調指出的是，塗裝在以鋼絲刷處理表面的油漆塗層的耐久性比噴砂處理表面上的塗層要差得多。鍍鋅鋼材油漆配套1、用於浸水或潮濕環境中的鍍鋅鋼材上的油漆配套體系必須是耐鹼性好和不能被皂化的，因此以選用環氧型塗料為宜。以環氧鋅黃底漆最佳。2、對於曝曬在乾燥大氣環境下的鍍鋅鋼材，可選用環氧鋅黃底漆加丙烯酸聚氨酯面漆，或者環氧鋅黃底漆+環氧雲鐵中間漆+氟碳面漆的超耐候，超長使用年限的配套方案。總之，表面處理非常重要，考慮到鍍鋅部件的耐久性，建議選用以上兩種配套油漆，以保證正常的使用年限，減少中間維護費用。以上為紫禁漆業為您的鍍鋅鋼材表面塗漆的表面處理方式及油漆配套方案，更詳細的產品價格及配套請致電紫禁城漆業。

㈦ 鍍鋅管配件名稱

鍍鋅線管的配件有：
1.有燈頭盒、接線盒、開關盒、插座盒、直管接頭、螺紋管接頭、護口、管卡、園鋼、扁鋼、角鋼、防銹漆等，螺栓、螺母、墊圈為鍍鋅件等。

㈧ 關於鍍鋅件焊接

關於鍍鋅件焊接：

1、鍍鋅件如何有效的焊悄薯扮接一直困擾著工程技術人員，因為鋅的熔點約為420攝氏度手歷，揮發溫度約為90攝氏度，普通熔焊的高溫電弧約3000至4000攝氏度，必然促使大量的鋅蒸發，從而導致各種焊接缺陷，並破壞了鋅層的抗腐蝕功能。

2、普通的冷鍍鋅件，鍍鋅層比較薄，可以使用普通的電焊或者氣保焊接，焊接前將鍍鋅件表面的鍍鋅層做打磨處理後焊接。

3、若是不便於打磨但是需要帶鍍鋅層焊接，就需要用氣體保護焊接，採用50杠6的啟灶焊絲焊接。但是這種方法鋅燒損比較嚴重，採用威歐丁上雙脈沖的熔化極惰性氣體保護焊可以緩解鋅燒損現象。

4、如果是熱鍍鋅，鍍鋅層偏厚的情況下用WE53的焊條氬弧焊焊接。

5、普通的電弧焊焊接鍍鋅件時會產生大量的白色氧化鋅煙塵，會損傷體力和健康。因此在焊接鍍鋅件時，必須加強通風除塵措施，必要時應佩戴防塵口罩。

㈨ 專業文章翻譯：熱浸鍍鋅層塗裝前表面處理

Preparing Hot Dip Galvanizing for Painting – It』s not Overly Complicated

熱浸鍍鋅層塗裝前表面處理-這並不太復雜

文章來自防腐塗裝良心網站KTAuniversity，原文鏈接  請點這里

Bare galvanizing provides excellent corrosion protection at a pH between 7 and 13, but corrosion of the zinc increases as the pH becomes more acidic (less than 7), or more alkaline (greater than 13).  When galvanizing is exposed to the lower or higher pH ranges, it should be painted.  Paint should also be applied when aesthetics is important, regardless of pH.  Unfortunately, when galvanizing is painted, paint failures can occur (Photo 1), but they are easy to prevent through proper surface preparation.

在 ph 值為7和13的情況下, 僅憑鍍鋅就可以提供優異的腐蝕保護, 但鋅的腐蝕會稿侍隨著 ph 值變酸性 (小於 7) 或鹼性 (大於 13) 而提高。 當鍍鋅層暴露在更低或更高的 pH 值范圍內時, 應當進行塗裝。 當外觀比較重要時, 無論 pH 值如何, 也應該塗裝。 不幸的是, 對鍍鋅表面塗裝時, 很可能發生塗層失效 (照片 1), 但通過適當的表面處理這很容坦斗易防止。

Photo 1 – Typical failure of paint to galvanizing e to lack of surface preparation.

照片 1-由於缺乏表面處理造成的典型塗層失效。

Surface preparation is the key to assuring successful coating adhesion and performance.  The extent of preparation required depends on the answers to these four questions:

Was the galvanizing passivated?

Is the galvanizing new?

Is the galvanizing partially weathered?

Is the galvanizing aged?

表面處理是保證塗層附著力和性能的關鍵。所需處理的程度取決於對以下四個問題的回答:

鍍鋅鍵信吵層鈍化處理了嗎？

鍍鋅層是新的嗎？

鍍鋅層是否部分風化？

鍍鋅層是否老化？

Passivating Treatments – Passivation is a common practice used at the time of galvanizing to rece the formation of white storage stain.  Unfortunately, passivating treatments applied to galvanizing (especially chromate treatments) can interfere with the adhesion of coatings.  If the galvanized steel is going to be painted, the galvanizer should be notified in advance, so that the passivation step can be eliminated.  Frequently, however, parts have already been galvanized and the user does not know whether a treatment was applied.  When in doubt, the surface should be tested.  A suitable procere is provided in SSPC-SP16, Brush-Off Blast Cleaning of Coated and Uncoated Galvanized Steel, Stainless Steels, and Non-Ferrous Metals.」  Section 4.3.3 of the standard offers the following:

鈍化處理  – 鈍化是鍍鋅時常用的一種方法，以減少鍍鋅件儲存時白銹印跡的形成。不幸的是，對鍍鋅件的鈍化處理(特別是鉻酸鹽處理)會影響塗層的附著力。如果鍍鋅件要塗裝，應提前通知鍍鋅人員，以便取消鈍化步驟。然而，實際情況通常是部件已經鍍鋅完成但用戶不知道是否進行了鈍化處理。如有疑問，應對表面進行測試。SSPC - SP16中提供了一個合適的程序，即「塗裝和未塗裝鍍鋅件、不銹鋼和有色金屬表面的掃砂處理標准。」 該標准第4.3.3節規定如下：

If all three areas turn black immediately, there is no passivation on the surface. If the first area does not turn black within 10 seconds and the second and third areas turn black immediately, there is no passivation on the surface with the possible exception of light oil. If the first and second areas do not turn black within 10 seconds and the third area turns immediately, a passivator of some type is present.

If it is present, mechanical cleaning is typically required to remove it, although some of the etching/cleaning solutions discussed below suggest that they will also remove some treatments.  Before using them, it is recommended that the etching cleaner be applied to discrete areas followed by the testing described above to determine if the treatment is removed.  If the project schele permits, weathering of 12 to 18 months prior to painting, should also eliminate any treatment that may have been present.

如果3個區域均立刻變黑，則表面沒有鈍化處理。如果第1個區域沒有在10秒內變黑，而第2和第3區域立即變黑，則表面沒有鈍化處理，但可能有輕微的油漬存在。如果第1和第2區域沒有在10秒內變黑，而第3區域立即變黑，則表面有過鈍化處理。

如果檢測有過鈍化處理，則通常需要機械工具來清理，盡管後面提到的一些蝕刻/清洗液也能去除某些鈍化層。如果使用蝕刻清洗液，建議先在小塊區域試驗，隨後進行上述測試，以確定是否去除了鈍化層。如果項目進度允許，塗裝前風化了12至18個月的構件也應去除可能存在的鈍化層。

New and Partially Weathered Galvanizing – If the age of the galvanizing is less than approximately 48 hours, it may be possible to coat it as is, but if it is weathered between a couple days and approximately one year (termed partially weathered), surface preparation will be required.  Two methods that are commonly used to prepare the galvanizing are cleaning/etching with a phosphoric acid/detergent blend and abrasive blast cleaning.

Etching solutions are used to clean, ll, and roughen the surface for proper coating adhesion.  The solution is applied to the surface, typically scrubbed with a synthetic abrasive pad, thoroughly rinsed, and force dried.  Examples of solutions can be found in the Master Painters Institute (MPI) qualified procts list #25, Cleaner, Etching, for Galvanized Metal ( http://www.specifypaint.com/APL/paintinfo_APL_new/MpiNumber.asp?ID=25000 ).

新的和部分風化的鍍鋅層 –    如果鍍鋅時間小於約48小時，可以直接塗裝，但如果鍍鋅層經過在幾天至約一年之間的風化(稱為部分風化)，則需要進行表面處理。通常用於鍍鋅件的兩種表面處理方法是噴砂清理和用磷酸/洗滌劑混合物進行清理/蝕刻。

蝕刻清洗液用於表面清理、表面暗化和粗糙化以獲得適當的塗層附著力。將溶液施加到表面上，通常用合成研磨片研磨，徹底沖洗，並烘乾乾燥。溶液種類可在「Master Painters Institute ( MPI )」認證產品列表#25「鍍鋅金屬的蝕刻清洗液」中找到。( http://www.specifypaint.com/APL/paintinfo_APL_new/MpiNumber.asp?ID=25000 )

Abrasive blast cleaning is performed according to SSPC-SP16.  Excerpts from a few paragraphs of the standard describing the cleaning of bare, uncoated metal (galvanizing) are repeated below.  The sentences that were redacted address the criteria for any paint remaining on the surface, which is not applicable to this article.

噴砂清理根據SSPC - SP16進行。以下是標准中描述清理裸露未塗裝金屬(已鍍鋅)的幾段摘錄。節略的部分是關於表面殘留油漆的標准，不適用於本文因此省略。

Paragraph 4.3.1 of the standard requires the removal of wet storage stain by means other than blast cleaning since the 「dwell time」 required to remove it by blast cleaning can damage the galvanizing.  Other methods are addressed in a non-mandatory Appendix.  Appendix Section A3 indicates that salts from wet storage stain can be removed with a nylon brush and water, or a dilute solution of acetic or citric acid, lime juice, or white vinegar, followed by rinsing with a large amount of water.

Appendix Section A8.1 indicates that to rece the risk of damage, blast cleaning is done with relatively low nozzle pressures (A8.2) and a softer abrasive with a Mohs hardness of 5 or less (A8.1.1.).

Appendix Section A9 recommends that the thickness of the galvanizing be measured before blast cleaning and again after blast cleaning to confirm that it meets the specified thickness.  The thickness requirements may be found in the procurement documents, or as required in ASTM A123, Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Procts, or ASTM A153/153M, Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.

The Appendix (A9.2) cautions that in the presence of moisture, zinc oxides can form quickly on the surface after preparation, so it should remain dry, and painted as soon as possible.  The same recommendations for a minimum 5°F (3°C) spread between surface temperature and dew point temperature when preparing steel (steel temperature being the higher of the two), also apply to galvanizing.

該標准第4.3.1段要求通過噴砂清理以外的方式清除儲存時產生的白銹印跡，因為噴砂清理白銹印跡所需的「停留時間」可能會損壞鍍鋅層。其他方法在非強制性附錄中討論。附錄部分A3指出，儲存時產生的白銹印跡可以用尼龍刷和水，或乙酸或檸檬酸、檸檬汁或白醋的稀溶液除去，然後用大量水沖洗。

附錄部分A8.1指出，為了降低鋅層破壞風險，噴砂清理採用相對較低的噴嘴壓力( A8.2 )和莫氏硬度為5或更低的較軟磨料( A8.1.1 )。

附錄A9建議在噴砂清理前和噴砂清理後測量鍍鋅層厚度，以確認其符合規定膜厚。厚度要求見采購文件，或ASTM A123《鋼鐵製品鍍鋅(熱浸鍍鋅)標准規范》或ASTM A153/153M《鋼鐵五金件鍍鋅(熱浸鍍鋅)規范》。

附錄( A9.2 )警告稱，在潮濕條件下，噴砂清理後會在表面會迅速形成鋅氧化物，因此應保持乾燥，並盡快塗裝。與鋼結構表面處理相同，鍍鋅層表面處理時同樣建議表面溫度超出露點溫度至少5°F ( 3°C )。

Aged Galvanizing – When galvanizing has weathered for 12 to 18 months, the surface will have oxidized and can often be prepared for painting by pressure washing alone.  The key is to remove surface dirt and debris as well as zinc salts and confirm that the surface is ll (photo 2).

鍍鋅層老化  – 當鍍鋅層已經風化12至18個月時，表面將被氧化，並且通常只需要高壓清洗處理就可以准備塗裝。關鍵是清除表面污物和鋅渣以及鋅鹽，並確認表面暗化(圖2 )。

Photo 2 – Exterior surfaces of the galvanizing have weathered and can likely be painted after pressure washing to remove the salts, but note the lack of oxidation and the visible spangle in the in the protected area (red arrow).  A test patch should be applied to determine if the adhesion is adequate without roughening and lling the surface.

圖2– 鍍鋅層的外表面已經風化，可以在高壓清洗除去鹽分後進行塗裝。但請注意保護區(紅色箭頭)內氧化物不多，有可見亮色的金屬鋅，應在該區域小范圍塗漆測試，以確定未粗糙暗化的表面塗料附著力是否足夠。

Depending on the condition of the steel, 3,000 psi with a rotating tip may be adequate, but it』s best to apply a test patch of the coating after cleaning and check the adhesion to make certain.  If there is any doubt regarding the adhesion of the coating, either of the methods described above for partially weathered galvanizing (etching cleaner or SP-16 Brush-Off Blast) should be used.

根據鋼材（表面高壓沖水）的經驗，旋轉噴嘴的壓力在3000psi（約20MPa）應該足夠，但最好在鋅層表面高壓沖水後小范圍塗漆測試，並檢查附著力以確保合格。如果對塗層的附著力有任何疑問，則應使用上述部分風化後鍍鋅層的任一表面處理方法(蝕刻清洗液或SP-16掃砂)。

Conclusion – Most coating failures on galvanizing are the result of poor adhesion of the coating to the galvanizing.  Poor adhesion is typically caused by a lack of roughening of the smooth galvanizing, an abundance of zinc salts beneath the coating film, or the presence of a passivating treatment that inhibits adhesion of the coating. When properly prepared, coatings will adhere well to galvanizing and improve the aesthetics and corrosion protection afforded by the galvanizing.  This article described a few common methods or preparing galvanizing for painting.  Other methods are described in:

ASTM D6386, Standard Practice for Preparation of Zinc (Hot-Dip Galvanized) Coated Iron and Steel Proct and Hardware Surfaces for Painting

ASTM D7396, Standard Guide for Preparation of New, Continuous Zinc-Coated (Galvanized) Steel Surfaces for Painting

結論 – 鍍鋅過程中的大多數塗層失效是由於塗層與鍍鋅層的附著力差造成的。附著力差通常是由於光滑鍍鋅層的粗糙度不足、塗層下面鋅鹽的大量存在或抑制塗層粘附的鈍化處理而引起的。經過適當的塗裝前表面處理，塗層將很好地粘附到鍍鋅層上，並改善鍍鋅層的美觀性和防腐性。本文介紹了幾種常用的塗裝前鍍鋅層表面處理方法。其他方法記錄於如下標准:

ASTM D6386, 鍍鋅(熱浸鍍鋅)鋼鐵製品和五金件塗裝前表面處理的標准操作規程

ASTM D7396, 新的連續鍍鋅鋼材塗裝前表面處理的標准指南

原文作者介紹：

Ken Trimber is the President of KTA-Tator, Inc. He is Chairman of the SSPC Surface Preparation Committee and the SSPC Visual Standards Committee, as well as a member of the SSPC Standards Review Committee and ASTM DOl responsible for developing, reviewing and approving standards like the ones described in this article. He can be reached at [email protected]

ken Trimber，KTA-Tator公司的總裁，SSPC表面處理委員會和SSPC目視標准委員會主席，SSPC標准審查委員會和ASTM DOl成員，負責制定、審查和批准類似文中所述的標准。作者郵箱地址  [email protected]