Mathematically modeling of the softening point in ISP sintering Optimal control of sintering burn through point ISP烧结块软化点数模建立的研讨铁矿石烧结终点的优化控制
Sintering temperature of vitrified bond superhard grinding tools is high and the vitrified bond contains alkali oxide that can decrease melting point of the bond commonly. 陶瓷结合剂超硬工具的烧结温度一般较高,且含有助熔作用的碱金属氧化物,这些都对超硬磨料存在着严重的伤害。
For the complicated Pb Zn sintering process, an approach that integrates two models to predicting the burning through point ( BTP) was presented. 针对铅锌烧结工艺过程,提出一种集成的烧结终点预测模型。
But, when the sintering temperature is above 1000 ℃, the liquid phase sintering resulted from CuO with low melting point will cause ferrite grain to grow rapidly. 但当烧结温度超过1000℃时,由于低熔点的CuO导致液相烧结,从而会导致晶粒狂长。
A control scheme of decompounding sintering process control into two branch control models, chemical composition and control of burn-through point was put forward aiming at the problem of control complexity of iron ore sintering process. 针对铁矿石烧结过程控制复杂性问题,提出了一种将其分解为烧结矿化学成分控制和烧结终点控制的方案。
With the analysis of temperature control mechanism in the process of Sintering low melting point powders to product parts directly, the temperature control process of SLS system has been classified as temperature control of general layers and key layers. 分析了SLS直接熔融低熔点性粉末材料成型时的控温机理,将整个逐层加工过程的控温工艺分为一般层控温和关键层控温。
It was used to sintering high melting point material& cerium-tungsten alloy, and gained good effect. 将此高温效应用于烧结高熔点材料&铈钨合金,获得了很好的效果。
The Principle and Mathematical Models of Microcomputer System Controlling Sintering Burn-through Point 烧结终点微机控制系统的原理及其数学模型
Diffusion coefficient of uranium in UO_2+ x, sintering temperature and densification equation in low temperature sintering were also discussed by both the point defect model and the low-temperature sintering experiments. 理论讨论和试验验证了UO2低温烧结时铀离子的体扩散系数、低温烧结温度和致密化动力学方程。
Finally, the paper discusses the development of sintering technique on the view point of decreasing manufacture cost. 最后从降低生产成本的角度,探讨了烧成技术的发展方向。
Principle and applications of Model SJY projection type sintering point tester are presented briefly, its shortcomings analyzed, and improvement on control circuit, mechanical construction ect suggested to increase control precision and for convenience of installation and adjustment. 简要介绍SJY型影象式烧结点试验仪的原理、用途,并分析其原有缺点,着重在电气控制线路、机械结构等方面作了改进,以提高控制精度,方便安装调整。
The liquid sintering effect of SiO 2 is considerably obvious in the ceramic coating ZrO 2 of a high melting point, while this effect is not apparent in Al 2O 3 coating possessing a relatively low melting point. 添加剂SiO2的液相烧结作用在高熔点ZrO2陶瓷涂层中比较明显,而在较低熔点Al2O3陶瓷中不明显。
This paper describes and analyzes the principle of microcomputer system controlling sintering burn-through point, and provides its practical control methods and mathematical models. 本文叙述并分析了烧结终点微机控制系统的原理,提出了实用的控制方法和数学模型。
A new approach termed graded sintering under ultra high pressure ( GSUHP) for fabricating functionally gradient material ( FGM) that possesses escalated resistance distribution and large melting point difference was proposed and by which a 96% theoretical density of W/ Cu FGM was successfully fabricated. 提出了一种制备具有递变电阻及高熔点差功能梯度材料的新方法&超高压梯度烧结法,并成功制备出了相对密度达到96%的W/Cu梯度功能材料。
A new approach for construction of three dimension temperature trend map in sintering process based on plant-tail section infrared characteristic is proposed to determine burn through point. 研究了用机尾断面红外特征构建烧结过程三维温度趋势图检测烧结终点的新方法。
Improved Construction and Control System Design of Sintering Point Tester 烧结点试验仪结构和控制系统的改进设计
The state of burning through point ( BTP) is the mainly dependence for operating on-strand sinter plant. For the complicated Pb Zn sintering process, an approach that integrates two models to predicting the burning through point ( BTP) was presented. 烧结终点是烧结机操作的主要依据,是烧结过程的关键中间参数,本文对烧结终点控制方法进行了深入细致的研究。针对铅锌烧结工艺过程,提出一种集成的烧结终点预测模型。
EXPERT SYSTEM FOR CONTROLLING SINTERING PROCESS(ⅲ)& Control Strategy of Centre on Permeability and Predictive Strategy of Burn through Point 烧结过程控制专家系统(Ⅲ)&透气性中心控制策略和烧结终点预报策略
And further research the selective laser sintering steady state temperature field which have point, line, box-type heat. 并进一步研究具有点、线、框型热源的选择性激光烧结稳态温度场。
According to goals and characteristics of sintering process, controlling of blending, burning through point ( BTP) and multi-objective optimal control technique are investigation respectively, and integrated optimal control system of sintering process is developed. 根据烧结过程控制的目标和特点,分别对烧结配料优化控制、烧结终点优化控制和烧结过程多目标优化控制等技术进行研究,建立烧结生产智能集成优化控制系统。
One big difference between this material and traditional solder alloy is that the silver paste connects substrate and chips using a sintering process which processed at a lower temperature than melting point of nano-silver. 与传统的焊料合金回流焊不同的是,该材料是在远远低于纳米银熔点的低温下通过烧结工艺来实现芯片与基板的连接。