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单词 Solidification
例句
1, Otherwise, the solidification structure for different superheat was simulated.
2, The temperature field and solidification course is analyzed under the influence of process parameters such as casting temperature and casting speed and the component distribution is predicted.
3, The solidification and feeding process of steel casting - riser system is simulated with numerical dimensional temperature field.
4, The no machining directional solidification hollow turbine blades, hollow guide vans and complex structure parts used in aero engine and gas turbine made by vacuum precision investment casting.
5, By using solidification and melted slag theory, series mold powders of low alloy steel, plain carbon steel and high carbon steel, were developed and used in production successfully.
6, Results show that the supersaturated solidification Cr-content increases in the rapidly quenched alloys induced the great increase of vacancy density and production of vacancy plates.
7, The results demonstrate that solidification process may be divided into two stages: quasi-state stage and accelerating stage.
8, Based on the solidification feature of steel casting was studied and developed a computer program suitable to design of gating and risering system for steel casting.
9, The progresses of micro-modelling on casting solidification process are summarized in this paper. Deterministic model and probabilistic model for grain growth are described in detail.
10, The study development of melt superheating treatment on solidification microstructures and properties of Ni-based superalloys at home and abroad was introduced.
11, A solidification simulation software for pressure die casting processes has been developed.
12, The calculational efficiency of solidification simulations in sand castings was improved using the "transient mold area" concept which is a function of solidification properties.
13, The mathematical model for solidification process simulation in sand metal mold was established.
14, The solidification modes of liquid phase of semi-solid AZ91D Mg alloy were in close relationship with the degree of supercooling determined by cooling rate.
15, To test solidification characteristics of various casting alloy accurately is very significant for optimizing casting technique and getting castings with sound property and appropriate dimensions.
16, With directional solidification liquid quenching and definite quantity analysis of metallographic,(http:///solidification.html) this paper studied the micro solidification characteristic of ZA28.4 alloy.
17, Electromagnetic shaping and directional solidification is a new materials preparation technology combined with technologies of electromagnetic and directional solidification.
18, The self-compensated contraction caused by graphite dilatation in the solidification process of nodular cast iron makes casting with less flow-off or casting without flow-off possible.
19, This article prepares some Zn Al ( ZA 20 ) powders with the method of ultrasonic atomizing quick solidification.
20, Methods: Oriented cartilage extracellular matrix-derived scaffolds were fabricated with freeze-dried method using unidirectional solidification as a freezing process.
21, The structure of pastilles was more compact and the pastille purification rate was slower at lower solidification temperature, however the yield of pastilles was higher.
22, In this paper, the changes in structure and solute distribution during unidirectional solidification with electromagnetic stirring were investigated.
23, And it is discovered that the liquidus temperature hardly has effects on the solidification rate of alloy if solidus temperature is fixed.
24, An YBCO sample with high critical current density or single crystal stracture, can be obtained by the directional solidification method.
25, The compounding is made of ethoxyline resin chemicals and solidification inhibitor.
26, With the development of numerical technique and computer technology, the numerical modeling of the solidification process is changing from macro to micro modeling.
27, A generalized program based on finite difference method is proposed for simulating the solidification front of large castings.
28, The results indicate that the casting defects are mainly shrinkage porosity and cracks caused by solidification shrink, which mainly presents in the hot spot between the spoke and the rim.
29, The results show that main cause of conchoidal fracture forming is that composition segregation in solidification grain boundary of casting steel reduces the resistance of crack propagation.
30, When curing temperature was preferred to be 260 and the percentage of solidification agent was 3 %.
31, There exist three brittle temperature ranges during the course of solidification and cooling process in the weld metal of Low-carbon steel.
32, The microstructure characteristics and microsegregation of DD2 single crystal have been studied under ultra-high temperature gradient and rapid solidification conditions by laser rapid remelting.
33, Some rules of computer numerical simulation for the directional solidification with steep temperature gradient have been found out.
34, A solidification matrix includes a straight chain saturated carboxylic acid salt, sodium carbonate, and water.
35, An introduction was made to volumetric changes of castings and dimension changes of mold cavity occurring during liquid cooling and solidification of nodular iron castings.
36, Computer solidification simulation software as a high technology is a powerful tool for helping foundry engineers in improving process design of casting, casting quality, and casting yield.
37, It is concluded that during the slow directional solidification, the meniscus surface of liquid metal at liquidus temperature can keep its morphology at room temperature for a superalloy.
38, Vacuum solidification is an important technique procedure in transducer fabrication. It is related to the feature enhancement and long term stability as well as the creep specification.
39, This paper will discuss especially on the structure and working principle of continuous unidirectional solidification equipment under conditions of vacuum melting and argon shield.
40, The effects of different casting speeds, degree of superheat and secondary cooling to the central and angle part temperatures and the final solidification point have been studied.
41, In accordance with the time of their development during solidification of the weld, the terms hot crack and cold crack have become common usage.
42, The vacuum melting and argon protecting continuous unidirectional solidification technology was introduced meltingcontinuous unidirectional solidification.
43, An explicit finite—difference method (FDM) was used to model and simulate the solidification of eutectic cast iron by combining heat transfer equations with undercooling nucleation and growth laws.
44, Organic Anticorrosive Coating The coating are preparation with a series ceramic powders, epoxy resin, modified polyurethane resin, solidification agent and a few additive.
45, The heat transfer and solidification change are analyzed by measuring the temperature change curves of metal mold, casting and pressurized bar in experimental model during local pressurization.
46, The temperature distribution has two peaks. The first peak is due to solidification shrinkage, and the second peak is related to the graphitizing expansion during solidification of cast iron pipe.
47, It has been an indiscerptible organic integer to explore new material , dig material potential properties and unidirectional solidification technology.
48, Casting temperature have a little effect on the solidification end location.
49, It is defined as 1/60 of the luminous intensity per square centimeter of a black body radiator at the temperature of solidification of platinum.
50, It is a history of improved temperature gradient and promoted cooling rate from the aspect of unidirectional solidification technology evolution.
51, We added echinocandins and azoles to CHROMagar Candida medium prior to its solidification.
52, As the interface follows the solidification front of the shell metal, the areas of soft core metal showing at the barrel surface, will be patchy and not continuous.
53, The effect of trace elements in ZA27 cast alloy, such as Mg, Cu, RE, Ti and thickness of. castings, pouring temperature, modification on the solidification characters of ZA27 cast alloy were studied.
54, The temperature gradient in front of S/L interface was measured on Zone Melting Liquid Metal Cooling(ZMLMC) directional solidification apparatus.
55, Sound castings could be obtained by improving pouring system, setting chills and some other measures to establish a beneficial thermal field and reasonable solidification conditions.
56, Ultrasonic can greatly refine solidification structure of metals and eliminate gravity segregation.
57, The breakthrough curves for heavy metals of solidification sludge were obtained by flexible-wall permeameter and the hydrodynamic dispersion parameters were acquired by genetic inverse method.
58, Heat treatment of pressure die casting is not possible but due to the high rate of solidification the mechanical properties are good.
59, The solidification process takes 24 hours to complete and any surplus material supports the structure during manufacture and can be reused .
60, The mechanism for this phenomenon is caused by differences in solder solidification, which is affected by the lead from either the PCB or component lead plating.
61, Sound castings are determined in a great extent by the mold filling and solidification processes of castings.
62, The effects of the direct magnetic field treatment on the microstructure and electrochemical performances of hydrogen storage alloys during their solidification process were studied.
63, The development of carrying on the solidification using the biomass briquetting machine to take shape the straw is quite rapid.
64, Using enthalpy to deal with latent heat of solidification the numerical model is solved by finite element method, and a steady temperature field can be obtained under a certain condition.
65, The equiaxed grains move with the fluid and accumulate at the bottom center of the ingot during solidification. The cone-shape negative segregation forms after solidification.
66, Finite Difference Method ( FDM ) is usually used for calculating the temperature field of casting solidification processes.
67, Results show that directional solidification cladding layers of 316L stainless steel with fine crystallography orientation under the processing parameters mentioned in this paper were obtained.
68, Based on the increasing clarity of the solidification characteristics of the heavy-wall nodular iron castings, the authors bring forth their systematic technological design.
69, The current major solidification technologies used for production of mc-Si ingots are casting, heat exchange method (HEM), directional solidification system (DSS) and electro-magneto casting (EMC).
70, The dendritic growth of alloy non-isothermal solidification become slower and the second dendritic are less developed than isothermal growth.
71, The paper introduces the project of treatment of the oily waste water in the residue oil tank zone by advective separation of oil-blending and solidification gas-floating-coke filtration process.
72, Computer simulation tests of the solidification process of concast thin slabs were conducted in a twin block chain caster and reliability of the solidification process model was confirmed.
73, The results showed that the diffusion rate of two kinds of organic solvents were different during the in vitro solidification procedure.
74, Electroosmosis technology can solve the problem of high water cement ratio during construction and low water cement ratio during solidification effectively so that have expansive application prospect.
75, Effects of levitation melting and casting on solidification structure,(http:///solidification.html) mechanical properties and wearing capacity of tungsten alloy cast iron have been examined.
76, A mathematical model of equiaxed grains movement and macro-segregation has been built to analyze the fluid flow and species distribution during the metal solidification.
77, The tendency of hot tearing during solidification and cold crack during cooling was predicted by employing different criteria based on the simulated stress results.
78, Phase and structure selection of peritectic alloys under directional solidification is a complex problem.
79, Numerical model was established after considering solidification, shake out, clearing getting system and heat treatment to predict the casting deformation during hot working processes.
80, The result shows: The directional solidification structure has obvious orientation and the structures grow along with the draw direct.
81, It is discussed that adiabatic material, as well as ratio of height and width effected solidification, shrinkage cavity and shrinkage porosity.
82, Usage: In food industry, it is used as leavening agent, dough regulator, buffer, modifier, solidification agent, nutritional supplement, chelate agent, flulty agent for bakery.
83, Simulating different solidification cooling rate with step-metal mould and sand mould, the effect of solidification cooling rate on microstructure and properties of high boron steel were studied.
84, Based on the numerical simulation and real casting experiment, the influence of the slot gate system on the filling and solidification process of the cylindric magnesium alloy casting is studied.
85, In order to obtain directional solidification sequence, the casting was divided into 4 positions to calculate the volume of the risers and the chills.
86, The strength theory, dendritic bridging theory, solidification shrinkage reparing theory and CSC criterion, HCS criterion are stressed.
87, The columnar zone of HCrCI was found by unidirection solidification formed by chill.
88, Continuous unidirectional solidification technology is a new technology, which combines continuous casting technology with unidirectional solidification technology.
89, Recently, many aspects of peritectic solidification have been investigated including nucleation and growth, banded structure, coupled growth and phase selection.
90, The distribution of slab temperature field and the change law of solidification course were studied deeply during the secondary cooling and practice of soft reduction operation.
91, This is an algorithm solidification simulation about"multiple nodal region"in boundary node of casting and mold system.
92, That's a three-legged ancient cooking vessel, which represents solidification between Han and Hui nationalities.
93, In this study, through the impurity distribution, organization and resistivity analysis, it evaluates the directional solidification purification effect on the polysilicon in the round.
94, Using self-feeding in solidification can make good surface quality, no shrinkage casting defects of castings; the technology product yield of the casting greatly increases.
95, The cast CAE technology based on solidification simulation of casting is a practical engineering technology.
96, Shrinkage cavity and shrinkage porosity were eliminated by adding iron chill on the valve body which make progressive solidification, together with atmospheric feeder which feed the casting.
97, The solidification process of liquid metal int he CASTEX technique was studied by FEM ( finite element method ).
98, Adopted proportional solidification theory and technique, which avoids the dispersed shrinkage of cylinder sleeve castings and achieves the well effect.
99, Calcium is important in the physiologic process of muscle or nervous reaction, nervous impulse transmission, heartbeat rhythm maintenance, blood solidification, cell coherence and so on.
100, The effects of temperature gradient and interfacial growth velocity on solid-liquid interface morphology were studied with succinonitrile under the unidirectional solidification system.
101, The solidification process of magnesium alloy AZ61 under magnetostatic field was researched, and the process without magnetic field was compared with it.
102, Have multiple non-vacuum and vacuum-melting equipment, mainly to the vacuum melting, directional solidification technology and the overall fine-grained technology.
103, The vacuum melting and argon protecting continuous unidirectional solidification technology was introduced(), which combines vacuum inductive melting with continuous unidirectional solidification.
104, The solidification process of turntable in sand-faced iron mould was numerically studied, and the basic parameters of the process were obtained.
105, Directional solidification and single crystal will be the development direction of the casting microstructure simulation.
106, The theory of liquid metal die forging is the understanding of the process which combines solidification under high pressure with forced feeding by plastic deformation.
107, The main technological properties are linear expansivity, tensile strength, flowability and solidification time.
108, According to classical solidification theory and the mechanism of solidification microstructure under pulse current, the effect of super-cooling degree variation on nucleation rate was discussed.
109, Directional solidification technology is a technical course that use certain equipment to make directional structure material with excellent performance at determinate conditions.
110, The interface morphology plays an important role in microstructure during directional solidification, we can display the variety of the interface morphology using phase-field method.
111, An electric arc melting-directional solidification techniqueis presented by which the giant magnetostrictive materials of bi-directional crystalline are prepared .
112, Directional solidification technology is an effective method to prepare materials with single orientation structure and high mechanical properties.
113, Finally, in the light of measured recalescence curves both the dependence of the fraction solid on time and the solidification rate on transient undercooling were determined.
114, A cellular automaton model was developed to simulate the primary spacing selection of dendritic array during directional solidification.
115, In this paper , the solidification structure of heat resisting alloy cast with dynamic action during centrifugal electroslag casting is studied , and the mechanism of dynamic action is investigated.
116, In accordance with proportional solidification principle and limited feeding method, a series of top riser size is recommended to heavy castings .
117, By making use of quenching and thermal-analysis technology, experiments showed that solidification process of CV-graphite cast iron during eutectic reaction can be divided into two stages.
118, Surplus sand that has not been embedded within the structure acts as a buttressing support while the solidification process takes place.
119, Microstructure analysis results showed that, in the condition of rapid solidification, the second phase morphology of monotectic alloys transited from rods into particles.
120, A kind of directional solidification equipment of high temperature gradient and double-zone heating is self-made.
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