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hardness increase
相关语句
  硬度增大
     The water hardness increase because of Ca2+and Mg2+ increase with the intervene intensity augment.
     离子中的Ca~(2+)、Mg~(2+)随干扰强度的增大而增大,从而使水体硬度增大
短句来源
     At the same time, the lattice constants of α phase and hardness increase, and the wear resistance of the material is also improved.
     同时,α相点阵常数增加,材料硬度增大,耐磨性也提高.
短句来源
  “hardness increase”译为未确定词的双语例句
     Through T4 and T6 heat treatments,θ phase and Cu-rich phase reacted to β phase,and coatings hardness increase from HV200.2 before heat treatment to HV304.5 after heat treatment,which is far above that of AZ31 matrix.
     经过T4和T6处理后,由于涂层组织发生θ+富Cu→-βAl(Cu,Fe)相转变,涂层的硬度呈增加趋势,由热处理前的200.2 HV增加到304.5 HV,远高于基体AZ31合金的硬度。
短句来源
     With the elevation of the melting temperature, the density and water absorption of melted samples decrease, the porosity and hardness increase.
     熔融试样的密度、吸水率和孔隙率均随熔融温度的升高而减小,减容比和硬度均随着熔融温度的升高而升高;
短句来源
     With the increase of sintering temperature,the density,strength and the hardness increase,whereas the elongation decreases.
     注射成形17-4 PH不锈钢的密度、抗拉强度、硬度随着烧结温度的升高而提高,伸长率则随着烧结温度的升高而下降。
短句来源
     When particle concentration of MoS2 in the bath is in the range of 3-11g/L, Ni-MoS2 composite coatings obtained present obvious effect of wear resistance and antifriction. That is due to the formation of in terfacial MoS2 film and hardness increase of composite coating.
     当镀液中MoS2浓度在3- 11g/L时,所获得的Ni-MoS2复合镀层具有明显的耐磨减摩效果,其原因是摩擦副界面MoS2膜的生成及复合镀层硬度的提高。
     The tensile strength and hardness increase along with the augmentation of deformation. The tensile strength is increased by 130MPa,and the microhardness is increased by 30.
     其强度和硬度随着变形量的增大而增加,最终强度比原始材料提高了约130MPa,显微硬度值提高了约30。
短句来源
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  相似匹配句对
     The hardness of the coating was found to increase after wearing.
     此外,还发现了涂层磨损后其硬度都有所提高,其中稀土含量大于0. 7%的涂层硬度提高幅度较大。
短句来源
     Surface hardness increase after nitriding treatment.
     氮化处理后NiTi合金表面硬度升高.
     The rates of increase of R。
     值增加的速率存在差异,前期R。
短句来源
     The increase in ATP and E. C.
     绿豆胚轴吸胀过程中 ATP 水平及能荷(E.C.)
短句来源
     hardness was HB;
     硬度HB;
短句来源
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  hardness increase
The sintered density and as-sintered hardness increase with increasing compaction pressure, and are significantly influenced by the powder structural characteristics.
      
The hardness increase caused by these treatments was discernible.
      
Isothermal decomposition at 600°, 700°, and 800°C of alloys with the retained § structure results in a sizable hardness increase in 2 at.
      
A hardness increase in excess of 50 pct was recorded close to the surface.
      
The surface hardness increase was 40 to 60 pct for the shot-peened specimen and about 60 pct for the cold-rolled specimen.
      
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In this paper, the effects of △C-the difference of balance carbon-on the structures and properties of W-Mo general HSS were studied. With the decrease of △C from 0.31 to -0.12,the tempering hardness and red-hardness increase.but the toughness decreases;the hot-hardness varies differently: firstly it increases.and then decreases a little bit; M6C carbides decrease and MC carbides increase; the content of carbon increases in the matrix but its contents of alloy elements decrease,...

In this paper, the effects of △C-the difference of balance carbon-on the structures and properties of W-Mo general HSS were studied. With the decrease of △C from 0.31 to -0.12,the tempering hardness and red-hardness increase.but the toughness decreases;the hot-hardness varies differently: firstly it increases.and then decreases a little bit; M6C carbides decrease and MC carbides increase; the content of carbon increases in the matrix but its contents of alloy elements decrease, resulting a more balance between carbon and alloy elements in the matrix. The balance between carbon and alloy elements in the matrix is the real cause of producing the highest secondary hardening. The decrease of residual M6C and its coarsening and MC carbides, especially the later one, would coarsen the grains of high-carbon high-speed steel during quenching. Finally, the suitable range of the difference of the balance carbon for the studied HSS was recommended as: △C=0.25-0.15 which may be appropriately selected for specific usage.

本文研究了平衡碳差值⊿C对钨钼系通用高速钢的组织和性能的影响。随⊿C由0.31减小到-0.12,钢的回火硬度,红硬性上升,韧性下降;高温硬度先升后稍降,M_6C碳化物减少,MC增多;基体中碳量上升,合金元素下降,碳和合金元素更趋平衡。基体中碳和合金元素的平衡是最佳二次硬化的真正原因。淬火未溶M_6C碳化物的减少,以及未溶碳化物的粗大化,特别是后者,使高速钢的淬火晶粒粗大。最后,推荐⊿C=0.25~0.15作为所研究高速钢的平衡碳差值范围,可根据具体用途特点选择具体数值。

In order to investigate the influence of rare-earth elements on the properties of hard metals, the comparative tests for different R.E.elements (MM,Ce,Nd,La,Dy,Y), and different adding contents and adding in different hard metals,(WC-Co, WC-TiC-Co, WC-TaC-Co, WC-TiC-TaC-Co)have been studied under the conditions of conventional producing process of hard metals, Results show that the bending strength of hard metals at room temperature are obviously improved by the addition of R.E.elements. The maximum limit of...

In order to investigate the influence of rare-earth elements on the properties of hard metals, the comparative tests for different R.E.elements (MM,Ce,Nd,La,Dy,Y), and different adding contents and adding in different hard metals,(WC-Co, WC-TiC-Co, WC-TaC-Co, WC-TiC-TaC-Co)have been studied under the conditions of conventional producing process of hard metals, Results show that the bending strength of hard metals at room temperature are obviously improved by the addition of R.E.elements. The maximum limit of improvement is achieved by an addition of 15.5% (YT15+0.2%MM), while hardness increases slightly(0.2-0.4HRA)or remains constant. By using high magnification metallograph, it was found that the grain of carbide(including WC-TiC solid solution)in alloys became finer and more homogeneous after the addition of R.E. elements. The above effects were more obvious with increasing the content of the R.E.additives. 602 MM, 710MM rare- earth alloy cutting tools were compared with YG8, YG6X tools for finish machining TA6 titanium alloy and stainless steel parts. The life time of the former tools was 4-6 times longer than the later tools. The productivity was increased by over 2 times and the finished surface of workpieces was obviously improved by using the former cutting tools.

为了探讨稀土元素对硬质合金性能的影响,本文作者在尽量消除工艺因素的影响下,采用常规硬质合金生产工艺,以不同的稀土元素(MM、Ce、Nd、La、Dy、Y)及其不同的加入量和加入的不同对象,进行了对比试验。研究结果表明,凡加入稀土元素的合金,其室温抗弯强度均较未加入者有明显的提高,其提高幅度最大为15. 5%(YT15+0. 2%MM);硬度略有增加(0. 2—0. 4HRA)或基本保持不变。用高倍金相显微镜进行观察,发现:加入稀土元素的合金,其碳化物晶粒(包括WC—TiC固溶体)比未加者细且均匀,并随加入量的增加,其细化程度更其明显。用602MM、710MM稀土硬质合金刀具精加工TA6钛合金及不锈钢零件,与原用刀具YG8、YG6X相比,刀具的寿命提高4—6倍,生产效率提高2倍以上,被加工件的光洁度和精度有显著提高。

A study of exchange adsorption and leaching desorption of calcium ion in soil has been made at the various coexisted salts with calcium-45 tracer. The calcium carbonate solubility is effected by free carbon dioxide and salts. Pollution caused by the salts in soil was supposed to be the major cause of hardness increase of groundwater in the semi-arid and arid regions.

用~(45)Ca示踪剂研究了不同盐类存在条件下,钙离子在土壤中的交换吸附和淋洗解吸,游离二氧化碳和不同盐类对碳酸钙溶解度的影响,研究表明,土壤中盐类的污染,可能是造成半干旱地区和干旱地区地下水硬度增高的主要因素。

 
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