北重研磨平臺2000*6000mm廠家優(yōu)惠中-泊頭北重的簡單介紹

北重研磨平臺2000*6000mm廠家優(yōu)惠中-泊頭北重的詳細(xì)信息

研磨平臺研磨平板 特性：

　　1.操作簡單，上砂快，嵌砂量足，使用后仍十分容易上同類型砂，經(jīng)過打磨后,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.平板耐用,切削足而持久,輕度導(dǎo)砂后仍有良好的切削性,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.

研磨平板的研磨方法

Lapping Method.

用研磨工具和研磨劑，從鑄鐵平板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、干研和半干研三種加工方式，通常用于鑄鐵平板表面處理的研磨方法是干研（即嵌砂研磨）。嵌砂研磨又可以分為三板互研法和二板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.

三板互研法：所謂三板互研法是指三塊平板互相之間依次互研，并且每塊平板只能當(dāng)下板兩遍，實際共研磨6遍。使用這種方法壓砂的好處是，三塊研磨平板的平面度都很好，三塊研磨平板的壓砂效果基本一樣，并且三塊研磨平板都可以使用，不用經(jīng)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板才能完成整個加工，也就是說制作一塊研磨平板的成本和制作三塊研磨平板的成本是一樣的。

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.

二板互研法：也叫子母板壓法，這種方法是只用兩塊研磨平板一上一下互研。用這種方法研磨壓砂結(jié)果是，兩塊平板的平面度基本吻合，上面平板的平面度凹，下板的平面度凸，并且下板的壓砂效果要比上板的好。由于上板中間凹，不容易修理量塊，一般不用上板，只用下板這一塊平板。

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.

所以研磨平臺的研磨方法一般選擇嵌砂形式的三板互研法，碰到只定做一塊非標(biāo)型號的研磨平板時為了降低成本通常會選用二板互研法。

研磨的詳細(xì)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.

研磨平板材質(zhì)的選擇

研磨平板的工作面硬度應(yīng)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板表面從而對被研工件表面進(jìn)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板切削的結(jié)果。但如果研磨平板的工作面過軟的話，磨粒會全部嵌進(jìn)研磨平板而失去研磨作用。所以研磨平板材質(zhì)的組織結(jié)構(gòu)應(yīng)細(xì)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(xì)的表面粗糙度。制作研磨平板的材質(zhì)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，后兩種主要用于拋光銅合金制成的精密軸瓦或研磨軟質(zhì)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.

研磨平臺的制作工藝

鑄鐵研磨平臺和鑄鐵檢驗平臺的結(jié)構(gòu)是一樣的，分板筋式和箱式，材質(zhì)為HT200-300.

鑄鐵平臺的精度好壞直接影響被檢測工件的質(zhì)量度，平臺的平面精度至關(guān)重要。研磨平臺采用“三塊互研”法，即用相同規(guī)格的三塊鑄鐵平板，輪番對研進(jìn)行研磨，該方法是最直觀，簡便，也是最有較的方法，但對基準(zhǔn)平板的要求有較好的平面度，且規(guī)格必須大于被修鑄鐵平板直至三塊平板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臺對被修平臺進(jìn)行研磨，直至接觸斑點達(dá)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.

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