XAR400,xar400耐磨板技術支持

XAR400, XAR450, XAR500 series special wear resistant structure steel

Germany Thyssen Krupp Stahl AG (thyssenkrupp steel company, hereinafter referred to as "the TKS") since the mid - 1960 - s to start producing the high wear-resisting performance of the special structure of steel, quenching and quenching and tempering heat treatment, with dense martensite or martensite and bainite microstructure. Production of steel plate thickness up to 100 mm. In addition to the traditional XAR 400, XAR 450, XAR 500 level, the TKS also successfully developed three new level -- for low and medium wear XAR 300 normalized steel, the higher temperature of the environment using the XAR 400 w could satisfy the requirement of higher wear and XAR superhard level 600. Thus, selection of steel plate coverage of up to 300 ~ 300 hb hardness, almost on any use of the environment to provide the appropriate solution. All levels, the most commonly used is 400, XAR hardness value is 400 hb, its service life can amount to about 5 times the traditional structure of steel plate. For XAR steel treated by quenching and quenching and tempering, due to the high hardness of the steel instead of carbon content is proportional to the, in order to obtain the required high hardness, keep certain carbon content in steel is necessary. Steel of nominal hardness hb 400, for example, must keep about 0.14% of the carbon, at the same time, by adding B, Mo, Ni, balanced performance to ensure that the steel plate inside and outside. Also note that all XAR steel also contains less than 1.5% Cr. All kinds of wear test has shown that the wear resistance of hoisting steel, wear resistance slightly acidic medium, in particular, is very effective. Normalizing special wear-resisting steel rolling XAR300 has good surface quality, especially applicable to the need for thermoforming purposes.

XAR400, XAR450, XAR500 series wear resistant steel is a high-tech materials, it will be uniform high hardness, good toughness, low alloy content and excellent machining performance perfectly set at a suit, make it become the ideal material for many applications.

XAR400耐磨板熱成型
XAR 300可在850-1000℃進行熱成型，成型及空冷后鋼板的良好性能不會失去。

XAR400機械加工
XAR 300/400（W）/450/500不僅耐磨性能優異，如果采用重型加工機床及堅硬的硬質合金刀具，其機械加工性能也同樣出色。但切削及進刀速度應根據材料的硬度相應調整。

XAR400熱處理
 
XAR400耐磨板的性能是通過奧氏體化后，在特殊裝置中進行淬火，必要時再加回火獲得的。對XAR 400（W）/450/500也可在熱軋后直接進行淬火。具體的熱處理工藝與化學成分和鋼板厚度有關。為使硬度不下降，熱處理后，要避免再次加熱XAR 400/450/500到250° C以上，XAR600 300° C以上，XAR 400W 400° C以上。 XAR 300采用880-960℃正火或正火軋制，對較薄鋼板和在一些特殊情況下，可能需要延時冷卻或回火。
 
XAR400鋼板熱切割021-37002018
 
采用火焰切割方法。對于較簿的鋼板，為減少變形可采用等離子或激光切割。
30mm（XAR 400）, 20mm (XAR 300/450) 或10mm（XAR 400W/500）厚度以下鋼板的火焰切割通常不需要預熱。但是，如果工件溫度低于5° C，或者在后續工藝中要對切割邊進行冷成型，為了防止出現冷裂，應考慮預熱到150° C左右。厚度超過10mm的XAR 600一般都需要
150° C左右預熱。

XAR400耐磨鋼板焊接：
 
參照一般的焊接要求，可對本鋼板進行手工和自動焊接。為防止焊縫出現冷裂，只應采用低氫焊材。采用奧氏體填料焊，通常不需要預熱。采用鐵素體填料焊，XAR400/450可能需要預熱；而XAR500則應按照SEW 088標準，根據板厚相應預熱。焊接的預熱溫度取決于鋼板的厚度以及焊接結構的殘余應力狀態。工作溫度不應超過250° C�？赏ㄟ^堆焊或金屬噴涂耐磨層來進一步提高工件的耐磨性能（我們將提供詳細的焊接資料供你參考）。