热室用于压坯的脱脂、成份调整和烧结。
Its sintering chamber is used for defatting, adjustment of composition and sintering.
分析了烧结温度和烧结保温时间对压坯密度的影响。
Effect of sintering temperature and sintering holding time on green density was analyzed.
改进后的模具结构可减少压坯分层,从而提高压坯质量及合格率。
The restructured dies can reduce the compact layering, resulting in better compact quality and higher qualification rate.
分析了放电电压、致密次数、加热温度等因素对压坯致密度的影响。
The effects of the discharge voltage, compacting times and temperature on the relative densities of the compacted specimens are analyzed.
高能球磨时间相同时,粉末压坯相对密度随压制压力的增加而增大。
The relative density of pressed compacts, which were prepared by high-energy milling 3%c-cu powders with the same high-energy mechanical milling time, increases with increasing compacting pressure.
本发明是通 过采用压坯在高温烧结同时渗铜的方法,来加强颈部强度。
The invention takes method of infiltering copper during sintering green compact at high temperature to enhance the neck strength.
本文系统地研究了金刚石微粉压坯在高功率CO2激光作用下的烧结工艺。
The sintering technique of diamond fine powders compact by CO2 laser has been researched systematically in the thesis.
综述了添加元素对奥氏体不锈钢粉末压坯液相烧结行为及材料性能的影响。
The paper summarizes the effect of additives on the liquid phase sintering behaviour of the compact of austenitic stainless steel powder and the properties of resultant material.
随着压坯的孔隙率增大,熔渗阻力减小, 熔渗速度加快,熔渗时间缩短。
With increasing pore fraction of CuW compact, the resistance to infiltration decreases and the infiltration time becomes shorter.
研究结果表明,不同预粘结工艺、压制温度和粘结剂含量对压坯密度影响很大。
Results of this study show that, powder mixing method, compaction temperature and binder concentration have significant effects on the green density.
提出了用粉末冶金法制备铜锰固溶体的方法,研究了铜锰粉末压坯的烧结特性。
A method for making monophasic solid solution of copper and manganese by powder metallurgy process is presented. The sintering characters of green compact of copper and manganese powder are studied.
本发明通过在钛粉中添加硬脂酸锌,获得了更大体积的压坯,且提高了压坯致密度。
The invention adds the zinc stearate into the titanium powder, thereby obtaining green compacts with larger volume and improving the density of the green compacts.
本发明合金制备方法:采用粉末冶金方法即配料、混料压坯、预结、烧结制成合金。
It is prepared through a powder metallurgy process including the steps of compounding material, mixing, pressing blank, pre-sintering and sintering to form the alloy.
结果表明,压制压力相同时,粉末压坯相对密度随高能球磨时间的延长而逐渐减小。
The results show that when the high-energy mechanical milling time increases, the relative density of pressed compact decreases gradually under the same compacting pressure.
分析了因模具结构造成钻齿类合金压坯分层的原因,提出了改进模具结构设计的措施。
Analysis is made of the reasons of layering in compact of drill tooth alloys due to the die structures. Measures are taken to improve the die structures.
通过改进模具磁路设计,使压坯密度分布趋于均匀,提高了大弧度磁瓦产品的成品率。
An improved method, for design of mould magnetic path in order to uniform the density of the tile billet is introduced, then increasing the rate of finished product.
分析了因模具结构造成钻齿类合金压坯分层的原因,提出了改进模具结构设计的措施。
Analysis is made of the reasons of layering in compact of drill tooth alloys due to the die structures.
之后对混合粉进行冷压制坯,发现压制压力、加压速度和保压时间对冷压坯的密度都有重要影响。
The cold-pressed compacts have been made of such WCu powders, and it is found that the pressure force and loading speed have important effects on the relative density of the compacts.
对420不锈钢粉末进行温压,探索温压工艺参数对压坯密度的影响,并对温压与室温模压添加0。
Influences of processing parameters of warm compaction on green density of 420 stainless steel were studied.
通过对等密度线的测定,查明了不同粒度铁粉的压坯密度变化,以及在不同压力下压坯密度变化的规律。
By measuring the equal density curves, the changes of compact density of iron powders with different particle size and different pressure were investigated.
并用压坯单重递减法试验证实,当将压模收缩比增加到1 2 2以上时,可以保证压坯内孔不出现裂纹。
The test of single compact weight decrease proved that when the shrinkage ratio of the compacting die is increased to over 1.22, there is no more crack initiated in the compact inner hole.
结果表明:在钼粉末的温压成形过程中,压坯顶部半端面、轴截面和侧壁的相对密度分布等值线和其应力分布等值线非常接近。
The results show that the distributions of the relative density and the stress are very close at the top, the longitudinal section and the lateral wall of the compacts during the warm compaction.
在普通液压式粉末成形机上压制成形同步器齿毂压坯的过程中,对压坯常见的裂缝进行了剖析,并提出了避免裂缝的措施,以提高其批产合格率。
Compact cracks in guide pieces caused by ordinary hydraulic forming press have been analyzed. Countermeasure to avoid cracks has been proposed for improving the qualification rate in mass production.
同时温压烧结坯的密度与常压试样的区别不明显,但抗拉强度和伸长率都高于同批的常压试样。
Although little difference exists between the densities obtained by RT compaction and warm compaction, the warm compaction leads to higher tensile strength and elongation.
通过模拟试验,研究了泥浆的颗粒组成与泥浆的解胶曲线、高中压注浆成形速率及坯体挺形性等的关系。
By simulated test, the co-relationship among the slip granulometric composition, slurry deflocculation curve, mid-high pressure casting forming speed and green body shaping endurance is studied.
实验中通过采用LF 2和LY 12两种铝合金筒坯,获得金属材料的塑性和屈服强度对旋压件可旋性影响的一般规律。
During experiments, aluminum alloy LF2 and LY12 are used in order to obtain the influence of plasticity and yield strength of metal materials on spinnability of spun parts.
管材内压液力成形过程中,管坯在内压与轴向压力的共同作用下发生变形。
In the process of tube hydro forming, the tube changes its shape under combined internal pressure and axial compressive load.
用电容器级钽粉压成适于制作固体电解电容器阳极的坯块, 压缩测定其生坯强度。
The crush strength of pressed pellets of capacitor grade tantalum powder which is used for making tantalum solid electrolytic capacitor was tested.
用电容器级钽粉压成适于制作固体电解电容器阳极的坯块, 压缩测定其生坯强度。
The crush strength of pressed pellets of capacitor grade tantalum powder which is used for making tantalum solid electrolytic capacitor was tested.
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