焊药

The brazing process includes selection of brazing materials, pre-brazing preparation, regulation and deformation control of brazing parameter. The Al-Si alloy wires core was used as filler metal and the gasoline flame with quincunx nozzle was used as heating source. Through FEM analysis, a set of technological equipment was designed to control brazing distortion.

通过对焊接材料、焊接规范、焊接工装等方面进行的试验和分析，确定了6063铝合金门窗框的钎焊采用无腐蚀性的Al-Si合金铝钎焊药芯焊丝作为钎料，汽油火焰作为加热热源的工艺方案，并通过有限元分析设计了简单易用的焊接工装以控制焊接变形。

From the analysis of the content of slag, adding CaF2 to the flux would increase the content of calcium and fluorine in the slag. Adding Na3AlF6 to the flux would increase the content of sodium, alumium and fluorine in the slag.

由熔渣成分分析可知，焊药中添加CaF2会增加渣中钙与氟含量，添加Na3AlF6会增加渣中钠、铝与氟含量，添加NaF会增加渣中钠与氟含量。

Flux entrapped in the joints is the principal cause of low strength or failure.

裂缝中封存有焊药是强度不足或断裂的主要原因。

When the content of the fluorides in the welding flux increase, it could improve the strength and toughness of the weld bead.

当焊药中氟化物的添加量增加时，可增进焊道的强度与韧性。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。