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研磨平台,研磨平闆

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    2016-7-2 10:23
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    [LV.3]偶爾看看II

    發表于 2016-7-2 10:32:06 | 顯示全部樓層 |閱讀模式
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    • 價格:700原價:700元
    • 庫存:20
    • 類型:鑄鋼件/鑄鐵件/特種鑄件/有色鑄件
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    • 所在地:河北省泊頭市交河西開發區

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    研磨平台  用于量具的制造、修理, 制件研磨,高精度機械零件制作,光學儀器的加工。
    Lapping Surface Plate is mainly used for manufacturing and repairing measuring tools; grinding and producing machinery parts; manufacturing optical instruments.

      研磨平闆 特性:
      1.操作簡單,上砂快,嵌砂量足,使用後仍十分容易上同類型砂,經過打磨後,光潔度顯著提高.
      2.容易得到量塊所需的較高光潔度和研合性,工件鏡面青亮.
      3.平闆耐用,切削足而持久,輕度導砂後仍有良好的切削性,推研時感覺流暢.
    Features of  Lapping Surface Plate:
    Easy and quick in embedding emery, which can ensure the surface is embedded with sufficient amount of emery and can be easily embedded the same type emery powder after using and smooth finish will be significant improved after further grinding.
    Easy to achieve high degree of finish and grinding property that required by gauge block.
    The surface plate is featured with good and persistent machinability and has a long service life.


    研磨平闆的研磨方法
    Lapping Method.

    用研磨工具和研磨劑,從鑄鐵平闆工作面上去掉一層極薄表面層的精加工方法稱作研磨加工,研磨加工一般可分為濕研、幹研和半幹研三種加工方式,通常用于鑄鐵平闆表面處理的研磨方法是幹研(即嵌砂研磨)。嵌砂研磨又可以分為三闆互研法和二闆互研法兩種研磨方法。
    Lapping finish is a precision machining process, in which a thin layer will be removed from the working surface of the cast iron plate by using grinding tools and abrasives. According to the process method, lapping method can be divided into wet lapping, dry lapping and semi-dry lapping. Dry lapping, also know as embedded emery lapping, is the common used finishing method for cast iron surface plate.


      三闆互研法:所謂三闆互研法是指三塊平闆互相之間依次互研,并且每塊平闆隻能當下闆兩遍,實際共研磨6遍。使用這種方法壓砂的好處是,三塊研磨平闆的平面度都很好,三塊研磨平闆的壓砂效果基本一樣,并且三塊研磨平闆都可以使用,不用經常壓砂,缺點是加工時間長且每次加工必須制作三塊相同的鑄鐵平闆才能完成整個加工,也就是說制作一塊研磨平闆的成本和制作三塊研磨平闆的成本是一樣的。
    Three-piece Lapping Technique:
    This type of lapping, involves three lapping plates, in which the three plates are supposed to lapping mutually in proper order and each plate to be lapped at the bottom position just for two times. So the total lapping times is 6.  This type of lapping can ensure all the three plates achieve  good flatness and similar sand embedded effect. But it always take a long lapping time and much more cost.

      二闆互研法:也叫子母闆壓法,這種方法是隻用兩塊研磨平闆一上一下互研。用這種方法研磨壓砂結果是,兩塊平闆的平面度基本吻合,上面平闆的平面度凹,下闆的平面度凸,并且下闆的壓砂效果要比上闆的好。由于上闆中間凹,不容易修理量塊,一般不用上闆,隻用下闆這一塊平闆。
    Two-piece Lapping Technique:

    This type of lapping just require two plates to grind mutually. Embedded sand by this method will ensure the flatness of these two plates are coincided. The flatness and embedded sand effect of  lower plate are better than the upper one. So we just use the lower plate.
      所以研磨平台的研磨方法一般選擇嵌砂形式的三闆互研法,碰到隻定做一塊非标型号的研磨平闆時為了降低成本通常會選用二闆互研法。
    研磨的詳細加工步驟及分類可參照“表面處理-研磨加工”
    So mutually lapping in three plates is the common used lapping method for Lapping Surface Plate. But if only one piece of non-standard custom-made Lapping surface plate is required.   Two Piece Lapping Technique will be chosen, in order to reduce the cost.

    研磨平闆材質的選擇
           研磨平闆的工作面硬度應稍低于被研工件,這樣在研磨中可使研磨劑中的微小磨粒容易嵌入研磨平闆表面從而對被研工件表面進行微量切削。反之,磨粒會嵌入工件表面,研磨時會造成對研磨平闆切削的結果。但如果研磨平闆的工作面過軟的話,磨粒會全部嵌進研磨平闆而失去研磨作用。所以研磨平闆材質的組織結構應細密均勻且具有較好的耐磨性,以保證被研工件獲得較高的尺寸、形狀精度和較細的表面粗糙度。制作研磨平闆的材質除了常用的灰鑄鐵、球墨鑄鐵,還可采用軟鋼、銅、巴氏合金和鉛,後兩種主要用于抛光銅合金制成的精密軸瓦或研磨軟質零件。
    Material selection:

    The hardness of the lapping plate should be slightly lower than the workpiece to ensure the sand more easily embed to the lapping plate instead of the workpiece, in order to conduct micro cutting on the surface of the workpiece. But if the work surface of the lapping plate is too soft, the all abrasive will embed to the working surface, which will cause the lapping plate lose the grinding function. So close-grained and abrasive resistance material shall be used, to ensure the machined worpiece can achieve high precision size, shape and fine surface roughness. Except for the common used material( gray cast iron, ductile cast iron,), mild steel, copper, babbitt, and lead are also can be used for making lapping plate.


    研磨平台的制作工藝
      鑄鐵研磨平台和鑄鐵檢驗平台的結構是一樣的,分闆筋式和箱式,材質為HT200-300.
      鑄鐵平台的精度好壞直接影響被檢測工件的質量度,平台的平面精度至關重要。研磨平台采用“三塊互研”法,即用相同規格的三塊鑄鐵平闆,輪番對研進行研磨,該方法是最直觀,簡便,也是最有較的方法,但對基準平闆的要求有較好的平面度,且規格必須大于被修鑄鐵平闆直至三塊平闆拖研均能得到理想的接觸斑點。另一種方法是用一塊精度較高的平台對被修平台進行研磨,直至接觸斑點達到要求。
    Technology of making lapping plate:
    Cast Iron Lapping Plate has same structure with the inspection plate, which divide to rib type and box type. The material is the high-strength cast iron HT 200-HT 300. The accuracy of the cast iron plate directly affect the quality of the inspected workpiece,.

    Lapping Surface Plate adopts three-piece lapping, In which process, three approximately flat surfaces are progressively refined to precise flatness by manual rubbing against each other in pairs with coloring matter in between then hand scraping off the high points. Any errors of flatness are removed by this scraping, since the only stable, mutually conjugate surface shape is a plane.


  • TA的每日心情
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    2017-12-8 12:22
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