A part surface can be infiltrated with a low melting point metal to increase density, strength, hardness, ductility and impact resistance.
零件表面能被低熔点金属渗透以增大密度、强度、硬度、延展性和抗冲击能力。
Above this point the hardness can be increased only slightly, because steels above the eutectoid point are made up entirely of pearlite and cementite in the annealed state.
高于此点，由于超过共析点钢完全由珠光体和退火状态的渗碳体组成，硬度增加并不多。
Based on the hardness analyses of actual spot welded joints, a computational model that consists of nugget, HAZ and base metal is established for the single point spot welded lap joints.
基于对实际点焊接头硬度分布的分析，建立了包括熔核、热影响区和母材的单点点焊搭接接头计算模型。
The point of intersection of elastic line and plastic line moves toward the low cycle life with the hardness of the spring steel raised after tempering from the strain fatigue curve.
在应变疲劳曲线上，弹性线和塑性线的交点随弹簧钢回火后硬度的升高而向低循环寿命移动；
Above this point the hardness can be increased only slightly, because steels above the eutectoid point are made up entirely of pearlite and cementite in the annealed state.
由于超过共析点钢完全由珠光体和退火状态的渗碳体组成，因此高于此点硬度增加并不多。
Results: The hardness of black plaster is positively associated with softening point and viscosity, while it is negatively correlated with penetration.
结果：黑膏药的软化点、黏度与软硬度呈正相关，而针入度与软硬度呈负相关。
It has low melting point and good wettability to the base-metal, and contains a high-strength and high-hardness solid solution structure, with a high strength of soldering joint.
该钎料具有熔点低，对母材的润湿性好，钎焊接头组织中含有强度、硬度较高的呈弥散分布的固溶体，以及接头强度较高等特点。
Scraper with double-sided knife with high-strength wear-resistant materials, board, according to the different soil hardness, the control point of the blade buried.
刮板带双面用高强度耐磨材料刀板，可根据土壤硬度的不同，控制铲刀入土角度。
Compared with conventional metallic materials, advanced ceramics have higher melting point, higher hardness, lower density, better anticorrosion property and wear resistance, etc.
陶瓷材料具有熔点高、硬度高、密度小、耐腐蚀、抗氧化等诸多优点，在冶金、化工、机械、宇航等领域已得到较多应用。
But owing to its coarser grain, denser structure, smoother surface, higher hardness and melt point, so its proportioning rate was limited.
但海砂的粒度比较粗，颗粒形状比较规则、结构比较致密、表面比较光滑、硬度和熔点都比较高，使它的用量受到一定限制。
Silver has the highest conductivity and thermal conductivity, but the low melting point, low hardness, easy to produce sulfide film.
银具有最高的导电率和导热率，但熔点低，硬度低，易产生硫化物膜。
Silver has the highest conductivity and thermal conductivity, but the low melting point, low hardness, easy to produce sulfide film.
银具有最高的导电率和导热率，但熔点低，硬度低，易产生硫化物膜。
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