In order to acquire the laws of effect of reheating on the flow property of pour-point-depressant (PPD)-treated crude oil and explore the method to quantitatively evaluate the effect of reheating, the crude oil from Beijiang was studied by using gel point tester and Haake VT500 viscometer in laboratory according to corresponding standards.
为掌握重复加热对降凝剂改性原油流动性的影响规律,并探索该影响的定量评价方法,以北疆原油为研究对象,利用凝点仪和Haake VT550粘度计,依据相关标准进行了试验研究,并用模糊评价方法对试验结果进行了定量综合分析。
The synthesis of silicon carbide whiskers by double-heating method using carbon black and SiO_2 powder as raw materials is studied.
以炭黑和二氧化硅微粉为原料,对双重加热法合成碳化硅晶须进行了研究。
The silicon carbide whiskers synthesized by double heating,using carbon black and SiO 2 powders as raw materials,were studied.
本文给出了一种低成本、适用于大批量生产碳化硅晶须的新方法 ,以炭黑和SiO2 微粉为原料对用双重加热法合成碳化硅晶须进行了研究。
The test-manufactured double heating ionitriding furnace has following advan tages:elimination of are induced by oil dirt on workpieces,enhancing temperature unifor mity of workpieces, saving of energy and water consumption, high production efficien cy.
所研制的双重加热离子渗氮炉可消除工件由油污引起的弧光，提高了工件的温度均匀性，具有省电、节水、生产效率高的特点。
The influence of reheat and high-speed shear on pour point depressants mainly depends on their temperature.
研究了降凝剂对高蜡原油流变性的影响 ,主要探讨降凝剂的筛选、不加剂和加剂高蜡原油的全粘温曲线的测定、重复加热和高速剪切对降凝剂的改性效果。