硅溶胶型壳的面层和背层对硅溶胶和耐火粉料的要求是不一样的。
The requirements for silica sol and refractory powder for mold shell in face layer differ from that in back layer.
探讨硅溶胶型壳制壳工艺中几个主要问题,以求提高工艺技术水平和铸件质量。
Several important problems related to ceramic shell used silica sol as binder were studied in order to raise technical level of the shell making and improve quality of the castings.
以硅溶胶型壳熔模精密铸造的工艺过程分析为基础,提出了铸件成本和价格的计算方法。
Calculation method of cost and price of investment castings was given based on analysis of sol silicate mold shell investment casting process.
本发明公开了一种化学机械抛光液,其含有溶胶型二氧化硅、速率增助剂、表面活性剂和水。
The invention discloses chemi-mechanical polishing liquid, which comprises a sol type silicon dioxide, a velocity accelerating auxiliary agent, a surfactant and water.
经过反复的工艺试验及一年多批量生产验证,成功地将熔融石英应用于精铸用低温蜡—硅溶胶型壳生产中。
By repeating technological tests and batch production tests for over a year, the fused silica was successfully used in the production of silica sol shell for low temperature wax precision casting.
气溶胶型空气清新剂是近几年新兴的精细化学品,其调香技术主要靠经验的积累,在这方面的报道比较少。
Aerosol-type air refreshing agent is emerging in recent years, the aroma regulation technologies rely mainly on experience accumulating, reports in this area were few.
采用溶胶-水热法,在较低的温度下已成功地合成了多种结晶良好的纳米或亚微米钛基钙钛矿型陶瓷粉体。
Many kinds of well-crystallized nanometer or submicron Ti -based perovskite ceramic powders were already synthesized successfully by sol-hydrothermal method at lower temperatures.
提出了磷化钼常压制备工艺,包括溶胶-凝胶法制备负载型磷化钼催化剂前体及在常压下以氢氮混合气为还原剂的催化剂前体还原。
Supported phosphorized molybdenum catalyst precursor was prepared by the sol-gel method, and reduced under atmospheric pressure by hydrogen nitrogen mixture for the first time.
以常规试剂为原料,采用溶胶-凝胶法合成了NASICON固体电解质材料,并以该合成材料为基础,制备了小型固体电解质型CO2传感器。
NASICON was synthesized by using normal reagents as raw material and sol-gel process. Based on the resulted material, the solid electrolyte CO2 sensor was prepared.
采用溶胶-凝胶法制备了负载型氮化钼的前驱体,采用流化氮化新工艺制备了氮化钼。
This article took the sol-gel method to prepare the precursor of supported molybdenum nitride, used the fluid nitriding new technology.
环境空气中气溶胶粒子是由极性气体凝聚而成,呈三峰型分布。
The aerosol grain in atmosphere is formed by agglomeration of polar gas, distributing in a triple peak pattern.
为了获得高性能的微波吸收材料,釆用柠檬酸盐溶胶-凝胶法来制备掺杂有金属离子的纳米六角晶型铁氧体。
This study adopted the citrate Sol-gel method to prepare the nanophase hexagonal ferrite with doping metal to get high performance microwave materials.
通过普通硅溶胶和快干硅溶胶的结构与稳定性比较分析快干硅溶胶陶瓷型的胶凝快干机理。
Coagulation quick drying mechanism for quick-dry silica sol ceramic shell was analyzed by comparison between the stability and structure on common silica sol and quick-dry silica sol.
本研究目的是探索一种燃烧温度较低且燃烧性能稳定的S型高效热气溶胶灭火剂。
The intention of this investigation is to grope for an S-type aerosol extinguishing agent, which has the low temperature and steady performance of combustion.
研究了预交联型CR溶胶组分的门尼粘度、凝胶组分所占比例以及硫化促进剂种类对其硫化后拉伸强度的影响。
The influence of the sol Mooney viscosity, the gel proportion and the accelerator type on the tensile strength of precrosslinked CR vulcanizate was studied.
采用钛酸四正丁酯为原料,用溶胶-凝胶法在粘胶基活性炭纤维(A CF)毡表面制备了锐钛矿型的二氧化钛粒子,并用XRD,SEM进行了表征。
Anatase TiO 2 particles were prepared on viscose-based activated carbon fiber (ACF) felts surface via sol-gel method with tetra-n-butyl titanate as precursor and characterized by XRD and SEM.
快干硅溶胶与普通硅溶胶比较,具有制壳周期短、型壳常温强度高、残留强度低的优点。
Compared with conventional sol silicate, the rapidly dried sol silicate possesses the advantages of short shell-making period and high ambient strength as well as low residual strength.
通过烧结实验,验证了硅溶胶在陶瓷型中的粘结作用;
Through(sintering) experiment, the adhesive effect of silicon gel in ceramic mould is verified.
熔模铸造是生产精密铸件的一种先进工艺,硅溶胶是影响型壳质量的重要因素。
Investment casting is an advanced process to produce precision castings and colloidal silica is an important factor that affects the quality of shells.
在借鉴前人工作的基础上,分析了S型气溶胶灭火剂灭的优缺点。
Based on the work of predecessors, this thesis analysed the advantage and disadvantage of S-type aerosol extinguishing agent.
气溶胶粒度的谱型是由小粒子占优势的分布较窄的多分散相;
The aerosol particle spectrum is consisted of some dispersed phases of small size particle whose distribution is narrow and is hazardous for inhalation.
气溶胶粒度的谱型是由小粒子占优势的分布较窄的多分散相;
The aerosol particle spectrum is consisted of some dispersed phases of small size particle whose distribution is narrow and is hazardous for inhalation.
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