查询词典 cooling duct

The experiment and the research indicate that:(1) Through the Hot-Continuous-Rolling production technics under small reduction ratio of 4.04 and 5.08, the rectangular continuous-casting billet of 235×265mm can be used to produce big size steel stick of Φ140mm and Φ 125mm whose macrostructure and mechanical properties meet the standards, this technics is viable;(2) This rolling technics can make the deformation penetrate to the center of the billet by low temperture and low velocity and big roller diameter and large reduction quantity at every pass and optimum design and arrangement of rollers, which is the key of Hot-Continuous-Rolling technics under small reduction ratio;(3) The sending technics used in Xining Special Steel Co.,Ltd can not use waste-heat of billet adequately, but the sensitive temperature section of A1N or sulphides or inclusions separating out is avoided, creating a favorablecondition for insuring good surface quality of final rolled steel;(4) The Hot-Continuous-Rolling technics under small reduction ratio has a close relationship with the billet quality control and the hot sending process control and the cooling control after rolling.

通过实验研究表明：(1) 235×265mm矩形连铸坯分别采用4.04和5.08的小压缩比热连轧生产工艺，所生产的Φ140mm和Φ125mm的大规格棒材，其低倍组织和机械性能均符合标准要求，该工艺是可行的；(2)本实验所采取的低温低速、大辊径大道次压下量轧制工艺加上轧辊孔型的优化设计与配置，可以使加工变形渗透到铸坯的中心，这一点是实现小压缩比热连轧生产工艺的关键；(3)西宁特钢在红送过程中虽然铸坯余热未能得到充分的利用，但是有效地避开了A1N、硫化物的析出及夹杂物偏析的敏感温度区，为保证最终轧材良好的表面质量创造了有利的条件；(4)小压缩比热连轧生产与铸坯质量控制，热送过程控制以及轧后冷却控制密不可分。

The results show that with the increase of strain rate, the grain sizes of thermal simulation AZ31B alloys with different deformation all decrease; however, when other conditions are the same, the higher deformation will lead to the formation of the smaller grain size, and as the cooling intensity decreases, typical cast structure of AZ31B will appear. With the decrease of roll casting temperature, the dendritic size of roll casting AZ31B alloy sheet prepared by the same strain rate is also reduced, but with the increase of strain rate, the dendritic size of the alloy sheet prepared by the same initial roll casting temperature is decreased, and the tendency of dendritic streamline is strengthened. During the roll casting process of AZ31B alloy, rolling force should not be large, otherwise it will cause heat cracking.

研究结果表明：在不同应变量下，热模拟样品的晶粒粒度均随应变速率的增加而减小，而当其他条件相同时，变形量越大晶粒粒度越小，冷却强度降低，合金呈典型铸态组织；利用铸轧技术生产的AZ31B合金，当应变速率一定时，随着初始铸轧温度的降低，铸轧态板材的树枝晶粒度逐渐减小；而在初始铸轧温度一定时，随着应变速率的增大，铸轧态合金板材的树枝晶粒度也逐渐减小；而随着应变速率的提高，树枝晶沿轧向呈流线状排列的趋势增强；在AZ31B合金铸轧过程中，轧制力不能太大，否则容易引起热裂。

YY series single-phase capacitor run asynchronous motor - Range Hood Motor, air conditioner fan motor, heater motors, water heaters strong emission motor, cooling fan motors, air filters motor, Ventilator Motor , Shoe Polisher motor shredder motor and so on.

主要产品：一、YY系列单相电容运转异步电动机——吸油烟机电机、空调器风扇电机、电暖器电机、热水器强排电机、冷风机电机、空气清新机电机、换气扇电机、擦鞋机电机、碎纸机电机等。

When the girl bought a boiling egg, the boy held egg in his hands, made it cold and peeled its shell to feed his girl; when the boy just completed a basketball match and searched for cooling Cola, the girl made him a cup of warm water; when the birthday present T-shirt from the girl was just the same one as he bought yesterday, the boy took it on immediately and threw his one into the deep of cabinet......

当女孩买了一个滚热的鸡蛋，男孩先把鸡蛋拿到自己手中，先用自己的双手给鸡蛋降降温，然后剥开送入女孩的嘴里；当男孩打完一场篮球赛，满身大汗地寻找冰镇可乐时，女孩端来一杯温水；当女孩送来的生日礼物恰恰是自己昨天刚买的同样一件 T 恤时，男孩高兴地马上穿起，然后将自己买的那件埋到衣柜的最深处

According to the working condition, the improvement measures had been adopted in material selection and construction design, the service life of the cooling pipe has been prolonged.

基於材料使用环境考虑，在选材和结构设计两个方面采取了改进措施，延长了冷却水管的使用寿命。

To deal with the deficiency of the self-learn method of heat transfer coefficient during plate laminar cooling process,a BP neural network was put forward to improve the self adapting system.

针对中厚板在轧后层流冷却过程中采用传统自学习方法修正计算对流换热系数存在的不足，提出利用BP神经网络对自适应系统进行改进。

The results show that HMX can reduce the super-cooling degree of DNTF and eliminate self-heating of DNTF crystallization.

结果表明，HMX能降低DNTF的过冷度，有效消除自加热。

While modern commonly used thermoplastic rubber is different, such as EVA hotmelts, it's a solid lead-free moisture can be self-fluxing materials, the use of this material to pass the appropriate melting point of temperature, temperature, opening hours, setting time and cooling hardening time, then by a workholders correctly, can achieve a reliable bond.

而现代常用的热塑性胶就有所不同，如EVA热熔胶，它是一种固体的无水分的可熔性胶粘材料，使用这种材料要通过适当的熔点温度、使用温度、开放时间、固化时间和冷却硬化时间，再经正确的夹紧定型，才能达到粘结的可靠效果。

The transformer is available as a self-cooled unit, or it can be purchased with additional steps of forced cooling that use fan or fans and oil pumps.

可选用自冷式变压器，也可购买带有风扇或风扇加上油泵这种强迫冷却措施的变压器。

The transformer is available as a self-cooled unit, or it can be purchased with additional steps of forced cooling that use fan or fan s and oil pumps.

可选用自冷式变压器，也可购买带有风扇或风扇加上油泵这种强迫冷却措施的变压器。

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