The method of the study is using Metallographical examination, surface roughness and poriness of the copper coating ware. Results show that different structures of the coating reflect different combination mechanism.

采用Olympus GX71金相顯微鏡對(duì)涂層界面進(jìn)行金相組織觀察并拍照；采用光切法測定了涂層的表面粗糙度91在线论坛；采用貼濾紙法測定了涂層的孔隙率国产偷自久久精品久久。

The fracture reasons of high strength PC steel wire are analyzed, it's considered that center segregation, central cavitation, poriness and inclusion are the metallurgical reasons which lead to the facture of PC steel wire and in the rolling process, differential coping quality, microcrack caused by surface defect, abnormal microstructure caused by burnt and improper cooling velocity, the ears on the head of the wire, overlapping of the wire rod itself are the main reasons which lead to the facture of PC steel wire. At the same time, inappropriate pickling, differential phosphorization quality, the bad heat treatment quality, the generation of crack in the improper drawing and transverse crack caused by abnormal laying of the drawing die are also the reasons of the cracking of PC wire.

對(duì)高強(qiáng)度PC鋼絲斷裂原因進(jìn)行了分析，認(rèn)為連鑄坯的中心偏析日韩在线丝袜福利网站大全、中心縮孔黄色网站入口观看、疏松和夾雜是導(dǎo)致PC鋼絲斷裂的冶金原因；軋制過程中久久精品国产品国产精，較差的修磨質(zhì)量XXXXX欧美视频在线观看免费看、表面缺陷導(dǎo)致的微裂紋，過燒以及不適當(dāng)?shù)睦鋮s速度導(dǎo)致的非正常顯微組織玖玖玖免费视频，盤條頭部的耳子亚洲综合另类校园日韩、盤條本身折疊是導(dǎo)致PC鋼絲斷裂的主要原因；同時(shí)1024无码，不恰當(dāng)?shù)乃嵯纯梢钥椿圃谙吖劭淳谩⑤^差的磷化及熱處理質(zhì)量、不適當(dāng)拉絲裂紋的產(chǎn)生一级黄色av、拉拔模具安放不正導(dǎo)致的橫裂也是PC鋼絲斷裂的原因欧洲真人无码永久在线。

There was an obvious phenomenon of mechanical occlusion on the cold spray coating interface, and the rolled coating had the phenomenon of metallurgical bonding; The structure of cold-sprayed coating is dense. The poriness of the cold-sprayed coating gradually reduce as the coating's thickness increase.

結(jié)果 涂層界面形貌的不同反映出兩種涂層的結(jié)合機(jī)理不盡相同，冷噴涂層界面出現(xiàn)明顯的機(jī)械咬合現(xiàn)象黄片毛片av，而軋制涂層以冶金結(jié)合為主美日韩免費黄片；冷噴涂層組織致密，孔隙率隨著噴涂厚度的增加逐漸降低一级做a爰片久久毛片A片美国；冷噴涂層的表面粗糙度高于軋制覆銅板a级视频免费播放，有必要對(duì)其進(jìn)行一道軋制處理，改善涂層表面平整度国产片黄片A片。

The technique comprises the steps as follows: using the waste filtered mud of the sugar-refinery as the material to generate gas which is dehydrated till the water content is less than and equal to 30 percent and through distribution (clay used for of 70.00 to 85.0 percent, dehydrated filtered mud of the sugar-refinery of 15.0 to 30.0 percent, intensifier carboxymethyl cellulose or propyloic fibrin is 0.1 percent of the total dosage of the below material), performaing, moulding with high temperature (800 to 1200 DEG C, 20 to 180min) and acquiring the multi-hole porcelain granule with 20 to 30 percent of poriness, 10 to 20 percent of water absorbing capacity and 1.5 to 7.5/MPa of cylinder pressing intensity.

一種糖廠濾泥生產(chǎn)多孔陶粒技術(shù)国产色色色视频网站，是用糖廠廢棄物濾泥為發(fā)氣原料亚洲一级av无码毛片精品，經(jīng)脫水至含水≤30％，經(jīng)配料(陶瓷用黏土70.0～85.0％美女一级A片免费视频在线观看，糖廠脫水濾泥15.0～30.0％黄色AⅤ，增強(qiáng)劑羧甲基纖維素或羧乙基纖維素為上述原料總量的0.1％)、制坯插下面的视频、高溫(800~1200℃18岁网站。，20～180min)成型，得到孔隙率20~30％日韩综合在线视频、吸水率10~20％久久国产综合精品久久国产、筒壓強(qiáng)度1.5~7.5/MPa的多孔陶粒。

poriness：多孔性

porigelinite 多孔腐殖體 | poriness 多孔性 | porodic 非晶質(zhì)的

poriness：多孔性;孔隙率

poriferous 多孔的 | poriness 多孔性;孔隙率 | pork 豬肉

poriness：孔隙率

poriness 孔隙率 | poriomania 漫游癖 | porism 系論

poriness：多孔性;孔隙度

孔隙 pore space | 多孔性;孔隙度 poriness | 豬肉 pork