查询词典 mould rains

This paper introduces the approach to calculating mould taper and its appropriate corresponding casting speed according to the contraction of molten steel in mould, which can establish much more specific calculation formulae and breviate former ones.

摘 要 文中提出了通过钢液在结晶器中的收缩量计算结晶器锥度及其较好配合拉速的方法。建立了更为明确的计算公式，简化了以往的经验公式。

The deciduate casting mould agent casting mould drawing of patterns agent adopt high grade material to compound but is accomplished, have volatilizing speed is quick , efficient, spread brush repetition usage many times , do not glue a model.

铸型脱模剂铸型脱模剂采用优质材料配制而成，具有挥发速度快、效率高，涂刷一次可重复使用多次，不粘模。

This paper analyzes the principle of the LP-LFC process,presents the physical and mathematical models of mould filling of the new process. The patterns including window-plate, ladders cluster, electromotor frame and exhausting manifolds are poured using LP-LFC process with AZ91D alloy, and the mould filling course is tracked with electrode touch point method. Based on above tests and experiments,the casting defects including short runs, cold laps, trapped gas,metal penetration, and so on, were investigated. The appearance characteristics,birth causes and influence factors of above defects are discussed in the article,diagrammatize modes of the defects forming is also given, and the measures of reducing or avoiding defects are put forward.

本论文分析了低压消失模铸造技术的工艺原理，建立了低压消失模铸造过程中金属液充型的物理和数学模型；在各种工艺条件下浇注了薄板窗体、阶梯模样簇、电机外壳和发动机排气管四个典型的模样和产品，用电极触点法记录了镁合金低压消失模铸造的充型过程；试验研究了镁合金低压消失模铸造中出现的浇不足、冷隔、气孔、粘砂等典型缺陷，分析了这些缺陷的形貌特征、形成原因及影响因素，给出了缺陷形成过程的图解模型，提出了减少和消除缺陷的工艺措施。

Traditionally it is through the exogenic power by the mould to realize curving formed craft. Because the cycle of mould design and manufacture is long, and the processing charge is high, so it is comparatively suitable for the mass production.

传统的弯曲成形工艺是在外力作用下借助于模具来实现的，由于模具的设计、制造周期长，加工费用高，较适用于大批量生产。

The present situation of domestic FRP mould preparation were analysed, the preparation methods of FRP mould with high glossiness were mentioned.

本文分析了我国玻璃钢模具制作现状，简单介绍了高光泽度玻璃钢模具的制作。

Through compare, adopt oblique to lead post make mould , Haff piece Move the structure of the mould .

经过比较，采用斜导柱在定模，哈夫块在动模的结构。

The using instance of mould is complex, its always abated by abrasion, fatigue, or bad hot stability, and so on. To extend the longevity of mould, people try to use general heat treatment and other surface treatment, especially the gas nitriding, because of its inherent excellence, such as wearable、incohesive、co-fatigue、stand against permanence intensity and causticity under changeable load and so on, also the gas nitriding facility is cheapness, so the gas nitriding technics is abroad used.

为了提高模具的使用寿命，人们除了采用常规热处理外，各种表面强化技术也被广泛应用，特别是气体氮化工艺，因其能显著提高工件的耐磨性、抗擦伤性能、抗粘和性能、接触疲劳性能、冲击或交变载荷下的持久强度和耐腐蚀性能等，而且气体氮化工艺设备投资、生产成本低，更是被广泛关注。

It is regular to put the mould, have the activity type of the mould, for inlaying Two sections of temperature control.

下模固定，上型活动式，对于镶入物品有良好的定位性，且具有成品顶出装置。

This paper analyzes protruding of integer mould cutting edge burst crack of electric machine blank under cur- rent patternmaking conditions,puts forward solving method to provide reference for mould worker.

文章就电机冲片整型模在当前制模工艺条件下所出现的凸模和刃口频繁崩裂现象进行一些定性分析，阐述了作者的观点和解决问题的方法，以供模具界业人士参考。

Based on the summarization of current situation of fluorine-free mould fluxes at home and abroad,the main problem during decreasing fluorine for high carbon steel and peritectic steel mould fluxes was analyzed,which includes the stability between viscosity and temperature at high temperature as well as effective control of crystallization properties .

综述了国内外无氟连铸结晶器保护渣发展状况，分析了目前高碳钢和包晶钢用保护渣降氟过程中面临的主要问题：高温时粘度-温度特性的稳定性以及保护渣结晶性能的有效控制。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48