材料瓶颈是限制 3D 打印、注塑成型、表面工程等新兴技术领域发展的首要问题。目前国内高端球形粉体材料主要依赖进口，价格昂贵。国产粉体材料存在氧含量高、球形度差、粒径分布宽、批次稳定性差等共性问题。射频等离子体球化制粉技术是利用等离子体的高温特性把送入到等离子体中的不规则形状粉末颗粒迅速加热熔化，熔融的颗粒在表面张力和极高的温度梯度共同作用下迅速凝固而形成球形粉体。等离子体具有温度高(~104K)、等离子炬体积大、能量密度高、无电极污染、传热和冷却速度快等优点，是制备组分均匀、球形度高、流动性好的高品质球形微米粉末与高纯高分散纳米粉末良好途径，尤其在制备稀有难熔金属、氧化物、氮化物、碳化物等粉末方面优势明显。
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[ DB ] CONNECT:[ UseTime:0.001212s ] mysql:host=pc-m5epcw1px949b110u.rwlb.rds.aliyuncs.com;port=3306;dbname=yousedb;charset=utf8
[ SQL ] SHOW COLUMNS FROM `tb_para` [ RunTime:0.006510s ]
[ SQL ] SELECT * FROM `tb_para` WHERE `id` = 1 LIMIT 1 [ RunTime:0.006511s ]
[ SQL ] SHOW COLUMNS FROM `tb_tech` [ RunTime:0.007945s ]
[ SQL ] UPDATE `tb_tech` SET `hit`=`hit`+1 WHERE `id` = 1093156 [ RunTime:0.001129s ]
[ SQL ] SELECT * FROM `tb_tech` WHERE `id` = 1093156 LIMIT 1 [ RunTime:0.001008s ]
[ SQL ] SHOW COLUMNS FROM `tb_admin` [ RunTime:0.001071s ]
[ SQL ] SELECT `realname` FROM `tb_admin` WHERE `id` = 6 LIMIT 1 [ RunTime:0.000898s ]
[ SQL ] SHOW COLUMNS FROM `tb_category` [ RunTime:0.003044s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `id` = 139 LIMIT 1 [ RunTime:0.000882s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `id` = 28 LIMIT 1 [ RunTime:0.001112s ]
[ SQL ] SHOW COLUMNS FROM `tb_anchor` [ RunTime:0.000973s ]
[ SQL ] SELECT * FROM `tb_anchor` ORDER BY `id` ASC [ RunTime:0.001439s ]
[ SQL ] SELECT `id`,`title` FROM `tb_tech` WHERE `id` > 1093156 AND `check_status` = 1 AND `category_id` = 139 ORDER BY `submit_date` ASC LIMIT 1 [ RunTime:0.019147s ]
[ SQL ] SELECT `id`,`title` FROM `tb_tech` WHERE `id` < 1093156 AND `check_status` = 1 AND `category_id` = 139 ORDER BY `submit_date` DESC LIMIT 1 [ RunTime:0.005665s ]
[ SQL ] select id,title,tag,submit_date from tb_tech where check_status=1 and id<>1093156 order by submit_date desc limit 10 [ RunTime:0.004373s ]
[ SQL ] SHOW COLUMNS FROM `tb_mcc` [ RunTime:0.001047s ]
[ SQL ] SELECT * FROM `tb_mcc` WHERE `classify` = 1 [ RunTime:0.000760s ]
[ SQL ] SELECT * FROM `tb_mcc` WHERE `classify` = 2 [ RunTime:0.000859s ]
[ DB ] CONNECT:[ UseTime:0.009384s ] mysql:host=mccbfzy.mysql.polardb.rds.aliyuncs.com;port=3306;dbname=ysscdb;charset=utf8
[ SQL ] SHOW COLUMNS FROM `tb_industry_report` [ RunTime:0.001195s ]
[ SQL ] SELECT `id`,`cate_aid`,`cate_bid`,`title`,`pic`,`tag`,`price`,`hit`,`mode` FROM `tb_industry_report` [ RunTime:0.001276s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 36 ORDER BY `sortid` ASC [ RunTime:0.000906s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 37 ORDER BY `sortid` ASC [ RunTime:0.000920s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 38 ORDER BY `sortid` ASC [ RunTime:0.000942s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 39 ORDER BY `sortid` ASC [ RunTime:0.000863s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 40 ORDER BY `sortid` ASC [ RunTime:0.000904s ]
[ SQL ] SELECT * FROM `tb_category` WHERE `pid` = 41 ORDER BY `sortid` ASC [ RunTime:0.000802s ]
[ SQL ] SHOW COLUMNS FROM `tb_advert` [ RunTime:0.001060s ]
[ SQL ] SELECT * FROM `tb_advert` WHERE `id` = 62 LIMIT 1 [ RunTime:0.000754s ]
[ SQL ] SELECT * FROM `tb_advert` WHERE `id` = 63 LIMIT 1 [ RunTime:0.000807s ]
[ SQL ] SELECT * FROM `tb_advert` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000780s ]
[ SQL ] SELECT * FROM `tb_advert` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000788s ]
1518
编辑：北方有色网
来源：广东省材料与加工研究所
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