本实用新型具有以 下优点：一是塑料的器体成型变化多，开孔率高，通气性好；
The plastics-steel combination flame-retardant barn ventilator has the advantages that: first, the plastic container has a plurality of forming changes, high hole rate and good ventilation;
还有个比较功能，给负责学生制作方法随时间变化的老师提供了一款成型的评价工具。
It also has a "compare" feature which makes for a great formative assessment tool for teachers looking to measure change over time in a student product.
在注塑成型时，整个填料过程始终保持成型树脂高温的任何加工变化都会增加松弛作用而减少方向性。
In injection molding, any variation in processing that keeps the molding resin hot throughout filling allows increased relaxation and, therefore, decreased orientation.
聚合物的密度在不同的温度和压力下变化很大，并由此产生了注射成型的许多问题。
Many of the problems connected with injection molding arises because the densities of polymers change so markedly with temperature and pressure.
焊缝成型的变化是电弧收缩与表面张力变化双重作用的结果。
The transformation of weld forming is the results of dual functions of arc shrink and surface tension change.
通过室内实验，探讨砂当量变化对微表处混合料拌和时间和乳化沥青用量，以及成型后性能的影响。
Through indoor experiments, the influence of sand equivalent changes on the mixing time of micro-surfacing mixture, the emulsifier dosage and the performance after shaped was discussed.
以流道间隙处熔体体积均匀变化为条件，对管材挤出成型机头内腔的形状曲线进行分析优化，并且导出了一个优化曲线。
On condition that plastic melt volume undergoes a uniform change, the authors analyse the internal shape of pipe die and produce an optimum shape curve.
随着成型压力的增大，多孔钛孔隙尺寸和孔隙度减小，但孔隙形状未发生显著变化。
The increasing in forming pressure reduces the pore size and porosity, but has little effect on the pore shape.
在论述自动铺带机的构架和控制系统的基础上，分析了自动铺带成型过程中预浸带位置随机变化的原因。
The random changing of the tape length is analyzed in ATL processing based on the framework and the control system for the automatic tape-laying (ATL) numerical control equipment.
通过模拟实验结果曲线的分析表明，塑件的结构特征及浇口位置与数量的变化，对塑件的成型收缩具有重要影响，并且有一定的规律可寻。
Structures and place and number of molding gate have effect on molding shrinkage by analyzing results of simulation experiments, and have many laws.
处理接触条件变化的高度非线性问题也非常有效，如成型问题。
Changes in handling the highly nonlinear contact condition problem is also very effective, such as molding problems.
研究了在交变磁场作用下磁场频率变化对7050铝合金小型方坯静态成型铸坯熔体的弯液面、显微组织以及元素分布的影响。
The effect of alternating magnetic field frequency on the meniscus, microstructure and element distribution of the static formed ingots of minitype square billet of 7050 aluminium alloy.
通过对粉煤成型前后粒度的变化研究和不同粒度组成原料的成型实验，揭示了原料粒度组成对型煤质量的影响规律。
Revealed material size-composition influence law to briquetting quality by study of granularity change of material briquetting and briquetting experiment of different size-composition of material.
系统由模块组成，预加工成型。整个花园建筑在地面上，如果50年或150年后，条件，所有权或环境变化后可以拆卸并可以移动。
Our system in modular and pre-fabricated. Each Garden is built above ground and can be dismantled and moved in 50 or 150 years if conditions, ownership, or environments change.
得到有益于认识铸件中此类接头凝固特性和热节位置的变化规律，对工艺设计者认识和防止成型过程中产生凝固收缩缺陷是很必要的。
The results are very important to understand the solidification characters of steel castings with T conjunction and to estimate the position of the hot-spot in the castings to avoid shrinkage defects.
熔体充填过程是聚合物成型过程的一个重要阶段，该阶段涉及型腔内的压力变化及熔体前沿界面问题。
The melt filling stage is one of the most important stages of the polymer molding; this stage involves the variation of the pressure and the movement of the front interface.
结合DTA - TG曲线，分析排胶过程中物理化学变化，并比较几种成型法坯体的排胶工艺。
According to curve of DTA-TG, physical and chemical reactions under binder removal process were analyzed, meanwhile several binder removal processes were compared.
还研究了镀层受力变形后的结构变化，并提出二次粘附成型机理。
The structure change of Zinc coating after deformation has also been investigated. The second adhesion mechanism duri...
当今，塑料容器广泛应用于不断变化的市场，由于塑料有较轻的结构，成本低，多功能性和易成型等特点，因此是一种较好的容器原料。
Plastic buckets are widely used in today's ever-changing marketplace. Plastic is a great material for containers because of its lightweight construction, cost, versatility and recyclability.
方法观察16例ami患者经过冠状动脉成型术，以及肝素、硝酸酯类药物、阿斯匹林等治疗前后血清vegf的变化。
Methods Serum VEGF was measured in 16 AMI patients undergoing angioplasty and receiving medical treatment with heparin, isosorbide dinitrate, and aspirin.
本发明涉及一种对成型模或样件模具在外形尺寸发生变化时的一 种改变模具外形的方法。
The invention relates to a method for changing die shape when overall dimension of a forming die or sample die changes.
本文在冲压成型外圈的锁紧斜面尺寸难以修改的前提下，分析了其配用的滚针或轴（内圈）的几何尺寸变化对摩擦角的影响。
The analysis of the friction angle effected by the dimension tolerances of the needles and shaft are given in this paper.
本文叙述了硬聚氯乙烯片材在热成型过程中的性能及变化规律。
It is related that the performance and regularity of which rigid PVC sheet is treated in forming process.
单位压边强度随温度的变化规律与拉深成型过程中材料的软化与硬化作用有关。
The evolution of blank hold pressure is determined by the effect of work hardening and softening during deep drawing process.
文中深入研究了从管坯到薄膜吹胀成型过程中的厚度分布变化和半径分布变化，并给出了结论。
In this paper, deeply research was made from tube semifinished product to bubble which is about distribute of radius and thick, and draw own conclusion.
在注射BMC成型中，BM C料粘度的变化影响工艺过程及制品质量。
In injection of BMC, the viscosity influences the process and final quality.
同时也解决了先成型后电镀易发生铜管的锥度、内径尺寸等有变化的问题。
At the same time, it also solves the problem of variety of copper pipe's taper and internal diameter size in method which shapes at first and plates later.
与第一代生物质成型燃料热水锅炉相比，各项热损失、热效率和燃烧效率有着相似的变化规律，但其大小有着不同程度的改变。
Comparing to the 1st generation, all kinds of thermal loss, thermal efficiency and combustion efficiency have the similar variance law, but the degree is different.
通过对两种不同成型压力烧结的试样进行测试，得到不同压力下的材料致密度和铜含量的变化数据。发现随着成型压力的增大，材料的烧结致密度升高。
The effect of densification process on the microstructure of these W-Cu composites and the pressureless agglomeration process of the samples fabricated by variant copper content are investigated.
通过对两种不同成型压力烧结的试样进行测试，得到不同压力下的材料致密度和铜含量的变化数据。发现随着成型压力的增大，材料的烧结致密度升高。
The effect of densification process on the microstructure of these W-Cu composites and the pressureless agglomeration process of the samples fabricated by variant copper content are investigated.
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