日标矩形管JIS-Z2241无缝型

日标矩形管jis-z2241无缝型
日标方管：为了表示支持这种节能环保的新技术，美国在他的得克萨斯州的宅邸中也安装了这种地源热泵空调系统。加拿大也出台了在其国内采用土壤源地源热泵空调系统的公共建筑享受25％工程款的补贴。在我国，地源热泵空调技术对建筑节能的重要意义已经得到了高度的认识和快速的发展，在《建设部23年科技成果推广转化指南项目目录》中将节能型土壤热交换器地源热泵冷（热）水供给技术列为第二类建筑节能技术中的项（2314）。

日标方矩管尺寸表：
150x75x6mm (rhs) rectangular steel hollow section (19.34 kg/m)
140x140x5mm (shs) square steel hollow section (21.10 kg/m)
150x100x5mm (rhs) rectangular steel hollow section (18.70 kg/m)
140x140x6.3mm (shs) square steel hollow section (26.30 kg/m)
150x100x6.3mm (rhs) rectangular steel hollow section (23.30kg/m)
140x140x8mm (shs) square steel hollow section (32.90 kg/m)
150x100x8mm (rhs) rectangular steel hollow section (29.10 kg/m)
140x140x10mm (shs) square steel hollow section (40.40 kg/m)
150x100x10mm (rhs) rectangular steel hollow section (35.70kg/m)
140x140x12.5mm (shs) square steel hollow section (49.50 kg/m)
150x100x12.5mm (rhs) rectangular steel hollow section (43.60kg/m)
150x150x5mm (shs) square steel hollow section (22.70 kg/m)
160x80x5mm (rhs) rectangular steel hollow section (18.00 kg/m)
150x150x6.3mm (shs) square steel hollow section (28.30 kg/m)
160x80x6.3mm (rhs) rectangular steel hollow section (22.30kg/m)
150x150x8mm (shs) square steel hollow section (35.40 kg/m)
160x80x8mm (rhs) rectangular steel hollow section (27.90 kg/m)
150x150x10mm (shs) square steel hollow section (43.60 kg/m)
160x80x10mm (rhs) rectangular steel hollow section (34.20 kg/m)
150x150x12.5mm (shs) square steel hollow section (53.40 kg/m)
200x100x5mm (rhs) rectangular steel hollow section (22.70 kg/m)
150x150x16mm (shs) square steel hollow section (66.40 kg/m)
200x100x6.3mm (rhs) rectangular steel hollow section (28.30kg/m)
180x180x5mm (shs) square steel hollow section (27.40 kg/m)
200x100x8mm (rhs) rectangular steel hollow section (35.40 kg/m)

日标矩形管参数表：
180x180x6.3mm (shs) square steel hollow section (34.20 kg/m)
200x100x10mm (rhs) rectangular steel hollow section (43.60kg/m)
180x180x8mm (shs) square steel hollow section (43.00 kg/m)
200x100x12.5mm (rhs) rectangular steel hollow section (53.40kg/m)
180x180x10mm (shs) square steel hollow section (53.00 kg/m)
200x100x16mm (rhs) rectangular steel hollow section (66.40kg/m)
180x180x12.5mm (shs) square steel hollow section (65.20 kg/m)
250x150x5mm (rhs) rectangular steel hollow section (30.50 kg/m)
180x180x16mm (shs) square steel hollow section (81.40 kg/m)
250x150x6.3mm (rhs) rectangular steel hollow section (38.20kg/m)
200x200x5mm (shs) square steel hollow section (30.50 kg/m)
250x150x8mm (rhs) rectangular steel hollow section (48.00 kg/m)
200x200x6.3mm (shs) square steel hollow section (38.20 kg/m)
250x150x10mm (rhs) rectangular steel hollow section (59.30kg/m)
200x200x8mm (shs) square steel hollow section (48.00 kg/m)
250x150x12.5mm (rhs) rectangular steel hollow section (73.00kg/m)
200x200x10mm (shs) square steel hollow section (59.30 kg/m)
250x150x16mm (rhs) rectangular steel hollow section (91.50kg/m)
200x200x12.5mm (shs) square steel hollow section(73.00 kg/m)
300x200x6.3mm(rhs) rectangular steel hollow section (48.10kg/m)
200x200x16mm (shs) square steel hollow section (91.50 kg/m)
300x200x8mm (rhs) rectangular steel hollow section (60.50 kg/m)
250x250x6.3mm (shs) square steel hollow section (48.10 kg/m)
300x200x10mm(rhs) rectangular steel hollow section (75.00 kg/m)
250x250x8mm (shs) square steel hollow section (60.50 kg/m)

日标管材重量表：
300x200x12.5mm (rhs) rectangular steel hollow section (92.60kg/m)
250x250x10mm (shs) square steel hollow section (75.00 kg/m)
300x200x16mm(rhs) rectangular steel hollow section (117.00kg/m)
250x250x12.5mm (shs) square steel hollow section (92.60 kg/m)
400x200x8mm (rhs) rectangular steel hollow section (73.10 kg/m)
250x250x16mm (shs) square steel hollow section (117.00 kg/m)
400x200x10mm(rhs) rectangular steel hollow section (90.70 kg/m)
300x300x6.3mm (shs) square steel hollow section (57.90 kg/m)
400x200x12.5mm (rhs) rectangular steel hollow section (112.00kg/m)
300x300x8mm (shs) square steel hollow section (73.10 kg/m)
400x200x16mm (rhs) rectangular steel hollow section (142.00kg/m)
300x300x10mm (shs) square steel hollow section (90.70 kg/m)
450x250x8mm (rhs) rectangular steel hollow section (85.70 kg/m)
300x300x12.5mm (shs) square steel hollow section (112.00 kg/m)
450x250x10mm (rhs) rectangular steel hollow section (106.00kg/m)
300x300x16mm (shs) square steel hollow section (142.00 kg/m)
450x250x12.5mm (rhs) rectangular steel hollow section (132.00kg/m)
350x350x8mm (shs) square steel hollow section (85.70 kg/m)
450x250x16mm (rhs) rectangular steel hollow section (167.00kg/m)
350x350x10mm (shs) square steel hollow section (106.00 kg/m)
500x200x8mm (rhs) rectangular steel hollow section (85.70 kg/m)
350x350x12.5mm (shs) square steel hollow section (132.00 kg/m)
500x200x10mm (rhs) rectangular steel hollow section (106.00kg/m)
350x350x16mm (shs) square steel hollow section (167.00 kg/m)
500x200x12.5mm (rhs) rectangular steel hollow section (132.00kg/m)
400x400x10mm (shs) square steel hollow section (122.00 kg/m)
500x200x16mm (rhs) rectangular steel hollow section (167.00kg/m)
400x400x12.5mm (shs) square steel hollow section (152.00 kg/m)
500x300x10mm (rhs) rectangular steel hollow section (122.00kg/m)
400x400x16mm (shs) square steel hollow section (192.00 kg/m)
500x300x12.5mm (rhs) rectangular steel hollow section (152.00kg/m)
500x300x16mm (rhs) rectangular steel

stkr400方矩管：
转炉炉渣在炼钢过程中有什么作用？：转炉炉渣在炼钢过程中的作用：去除金属液中的p和s；减小耐火材料的侵蚀程度；分散金属液滴为脱碳创造有利条件；防止大量的热损失，避免氧气流股冲击熔池；减少金属喷溅；防止钢液吸收有害气体；吸附外来及内在的细小非金属夹杂物。5喷溅产生的根本原因是什么？：喷溅产生的根本原因是：熔池内c-o反应不均衡发展，瞬时产生大量的co气体往外排出，这是发生性喷溅的根本原因；严重的泡沫渣渣量大，渣层厚等，阻碍co气体畅通排出，是导致喷溅发生的另一重要原因。