板材

ABSTRACT Being an important category of metal machining, metal sheet punching has its finished parts widely applied in many industries.

金属板材加工是金属加工的一个重要门类，其冲压件广泛应用于国民经济的各行各业。

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。

For the purpose of studying the effect of the surface damage on the steel sheet's mechanical perfo...

分析结果表明，因在板材表面蚀刻网格而造成的这种表面损伤，对板材本身的力学性能的影响并不显著。

In the testing of plate, surface conditioning to be carried out as necessary to maintain a reference back reflection of the plate of full scale during scaning.

板材探伤时表面状况应使扫查时板材底波维持在满刻度的。

The heat release rates of the sand burner at the bottom of the parallel panels were varied during the tests for each different panel material.

对于不同的板材，平行板材下面的沙盘燃烧器释放的速率也随之不同。

There are two types of materials, blocks and plates, and it could use different prescriptions and processing to make load-bearing wall block, non-loading bearing wall block and insulation block, plates include insulation roof plate, insulation floor plate and insulation wall plate.

该设备制作加气混凝土，是一种新型的建筑材料，主要有砌块和板材两类，可利用不同配方、工艺制作承重墙砌块、非承重墙砌块和保温砌块，板材分为屋面保温板、保温楼板和保温墙板。

In recent years, numerical simulation technology has been widely used to analyze problems of wrinkle, fracture, et al. during the forming of sheet metals, which lays foundations for obtaining FLD via numerical simulation.

近年来板材成形中开始广泛使用数值模拟技术来分析板材成形中的起皱、破裂等问题，为数值模拟获得成形极限图奠定了基础。

Shanshun Acrylics sheet are manufactured with dry distillation DMMA monomer in the process of water bath cast polymerization and low temperature.

山顺牌压克力板材采用干馏DMMA单体经水浴浇铸聚合法生产，经水浴低温工艺制作，板材硬度较低，但价格低廉。

Lower prices of domestic fire doors, Korea and Germany, sheet plate cost will have to increase by 25% and 50%.

国产防火门板价格较低，韩国板材和德国板材的成本则要增加25%和50%左右。

Compared with ordinary quartz, owing to nanoscale alumina crystallite, the artificial stone made of TISM nanoscale microcrystallite quartz can stand higher temperature (as high as 800℃ instantly), become harder (reaching 6 according to mohs hardness scale), and enjoy better plasticity because of nano alumina crystallite's good mouldability.

帝斯曼TISM纳米微晶石英石同普通石英石相比，由於增添了纳米氧化铝微晶粒子，整体板材更耐高温（暂态耐温度可达到800摄氏度以上），硬度更大（莫氏硬度达到6以上），同时结合纳米氧化铝微晶粒子在抗拉伸疲劳中出现可塑性形变的特点，所以整体板材相对于普通石英石韧性更好、可塑性更高，更不易开裂。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。