small hardness 中文意思是什麼
small hardness
解釋
微硬度-
It ' s the advantage of jmfc to apply the centrifugal casting technology to the small size of compound rolls, which characteristics are as follows : combining high hardness, anti - wear, impact and breakage resistance : spun cast the shell by proper charging of alloys and use high strength and impact ductility material as core
將離心澆鑄工藝用於小型復合軋輥的製造，是金環廠的優勢，採用該工藝的軋輥具有以下特點：兼得高硬度耐磨損與抗沖擊抗斷裂性能：按耐磨性和硬度要求，將合金科學配比，溶解澆鑄成輥身的工作層，再採用高強度抗沖擊的材料澆鑄輥頸和輥芯，冶金結合，兩者兼得。 -
Xt - yb - 1 is a development of the new company and quartz sand mixed casting artificial marble ( genus said : quartz resin ) resin, the resin curing exothermic peak at the low shrinkage of small, high surface hardness of products, not radioactive
1是我公司新開發的一種和石英沙混合澆鑄人造大理石（屬稱：石英樹脂）樹脂，該樹脂固化時放熱峰低、收縮率小，製品表面硬度較高，沒有放射性。 -
The dispersion and diffusion of the effective nickel plating solution were enhanced by adding a small amount of rare earth compound, the depositing rate, hardness, anti - wear and the surface quality of the coating were accordingly improved
摘要通過在快速鎳電刷鍍液中加入少量稀土化合物，改善鍍液的分散能力和深鍍能力，提高鍍層刷鍍速度，從而增加鍍層的硬度和耐磨性，改善鍍層表面質量。 -
The results show that small cr addition in steel can decrease the lamellar spacing of pearlite, and markedly increase strength and hardness with almost the same ductility and toughness, and accordingly improve wear and shelling - resistance of wheel steel
實驗結果顯示，加入微量的鉻，可以細化珠光體的片層間距，在保持韌塑性基本不變的情況下，顯著增加材料的強度和硬度，從而提高車輪鋼的耐磨性和抗剝離性能。 -
By adopting unique technique, we mount metal outside the special ceramic liner so that the ceramic liner for mud pump can take the advantages of special ceramics, including high hardness, good anti - wear ability and small coefficient of thermal expansion
缸套是泥漿泵的主要易損件，由於工作條件十分惡劣，金屬缸套不耐腐蝕，使用壽命短，在地層復雜的條件下鉆井時，常因更換缸套而影響鉆井效率，此項工作勞動強度大。 -
Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great
採用雙向楔形壓制，大尺寸噴射沉積5a06鋁合金楔壓坯的組織和性能變化具有如下特點:當高向變形量為20 %時，大的孔洞變形破碎為小的孔洞，或呈線狀孔;隨著高向變形量的增加，顆粒進一步變形，孔洞進一步破碎，大孔「吞併」小孔，小孔塌陷並逐步消失;當高向變形量達到60 %時，孔洞量大為減少，材料基本緻密，組織趨于均勻，楔壓坯料的密度、硬度變化曲線接近水平線，坯料的相對密度達99 . 7 % ，抗拉強度_ b = 408mpa ，屈服強度_ （ 0 . 2 ） = 289mpa ，延伸率= 13 . 6 % ;對比其它的壓制溫度，在450楔形壓制的坯料組織均勻，孔洞及顆粒邊界基本消失，顆粒之間冶金結合良好。 -
10. mahogany, origin of central america and africa. wooden features : gloss strong, straight texture, structure small, uniform ; light weight, hardness soft, low intensity ; easily processed, easy blunt tool ; sliced peeling veneer excellent performance ; surface bristle slightly ; good adhesive properties ; nail easily
木材特性：光澤強，紋理直，結構細，均勻重量輕，硬度軟，強度低干縮中。加工容易，刀具易鈍單板刨切旋切性能佳表面略起毛膠粘性能良好釘釘容易。
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