2010年總目錄
第9卷第1期
COREX預(yù)還原豎爐反應(yīng)進(jìn)程的物理模擬 …………………… 應(yīng)偉峰,孫 野,羅志國(guó),鄒宗樹(shù) (1)
高爐球墨鑄鐵凸臺(tái)冷卻壁的溫度場(chǎng)的有限元仿真 ……………………… 劉 杰,黃曉然,杜 鋼 (7)
LF爐襯材質(zhì)對(duì)超低硫鋼精煉的影響 …… 竇力威,于賦志,呂志升,張 寧,李曉偉,沈峰滿 (12)
堿性中間包覆蓋劑結(jié)殼機(jī)理分析 …………………………………………………………… 謝 健 (15)
中間包控流裝置的物理模擬研究 ……………………………………… 張景利,顏正國(guó),于景坤 (18)
應(yīng)用6σ法控制超低碳鋼連鑄過(guò)程增碳 …………… 胡明謙,魏 國(guó),劉 洋,紀(jì)惠梅,沈峰滿 (22)
銅滴在富FeO熔渣中的電遷移行為 …………………………… 李秋菊,陳 鵬,林姜多,毛佳君 (28)
赤泥中氧化鋁和氧化鐵的浸出 …………………………………………… 魯桂林,遲松江,畢詩(shī)文 (31)
含砷廢水砷鐵分離的研究 ……………………………………………… 李 倩,田彥文,閻增范 (35)
CaCl2-LiF體系制備鋁鈧合金 ……………………… 程 濤,呂子劍,翟秀靜,張明杰,涂贛峰 (39)
Al-Zn-Mg-Sc合金連續(xù)冷卻轉(zhuǎn)變曲線的測(cè)定………………………………………………………………………………………………………… 何振波,趙延闊,王曉峰,尹志民,李紅英 ,崔建忠 (43)
Ce對(duì) 00Cr17高純鐵素體不銹鋼再結(jié)晶及晶粒長(zhǎng)大的影響 …………… 張 輝,王建軍,劉春明 (51)
硼對(duì)Cr20白口鑄鐵組織和性能的影響 …………… 曹海葉,辛啟斌,王琳琳,穆 晶,龍海明 (57)
Al,Nb含量對(duì) GH706合金長(zhǎng)期時(shí)效組織及持久性能的影響 ……………………………………………………………………………………… 信 昕,孫文儒,程麗萍,郭守仁,楊洪才,胡壯麒 (62)
非等溫?zé)嶂胤治鲅芯刻細(xì)饣瘎?dòng)力學(xué) ………………………… 劉忠鎖,汪 琦,鄒宗樹(shù),譚廣雷 (68)
考慮爐氣散射特性的加熱爐內(nèi)輻射換熱分析 …………………………………… 馬金鳳,陳海耿 (72)
聚合氯化鐵在處理冷軋綜合廢水中的試驗(yàn)研究 ……………… 林永增,王國(guó)棟,劉相華,朱 誠(chéng) (75)
Vol.9 No.1
Physical simulation of reaction progress in COREX shaft furnace………………………………………………………………………………………………………………………………YINGW ei-feng,SUN Ye,LUO Zhi-guo,ZOU Zong-shu(1)
Finite element analysis of ductile cast iron cooling stave failure process in blast furnace…………………………………………………………………………………………………………………………LIU Jie,HUANG Xiao-ran,Du Gang(7)
Influence ofLF refractory on the refining of ultra-low sulfur steel……………………………………………………………………………………………DOU Li-wei,YüFu-zhi,LüZhi-sheng,ZHANG N ing,LI Xiao-wei,SHEN Feng-man(12)
Mechanis m analysis for basic tundish fluxes to form the solidified crusts ………………………………………XIE Jian(15)
Physical simulation of flow control devices in tundish …………………ZHANG Jing-li,YAN Zheng-guo,YU Jing-kun(18)
Application of 6σqualitymethod in controlling of carbon pickup of ultra-low carbon steel during continuous casting process………………………………………………HU M ing-qian,W EI Guo,LIU Yang,JI Hui-m ei,SHEN Feng-man(22)
Behavior of Cu dropletsmigration in FeO-rich molten slag under electric field…………………………………………………………………………………………………………………LI Q iu-ju,CHEN Peng,LIN Jiang-duo,MAO Jia-jun(28)
Leaching of alumina and iron oxide from red mud ……………………………LU Gui-lin,CHI Song-jiang,B I Shi-wen(31)
Study on the separation of arsenic and ferric from wastewater containing arsenic………………………………………………………………………………………………………………………………LIQ ian,TIAN Yan-wen,YAN Zeng-fan(35)
Preparation ofAl-Sc alloys investigated in the systems of CaCl2-LiF………………………………………………………………………………………………………CHENG Tao,LüZi-jian,ZHA I Xiu-jing,ZHANGM ing-jie,TU Gan-feng(39)
Measurment of continuous cooling transformation curves ofAl-Zn-Mg-Sc aluminum alloy…………………………………………………………HE Zhen-bo,ZHAO Yan-kuo,WANG Xiao-feng,YIN Zhi-m in,LI Hong-ying,CU I Jian-zhong(43)
Effects of Ce on recrystallization and grain growth of high-purity ferritic stainless steel………………………………………………………………………………………………………………ZHANG Hui,WANG Jian-jun,LIU Chun-m ing(51)
Effect of boron on structures and properties of high chromium white cast iron…………………………………………………………………………………………………CAO Hai-ye,XIN Q i-bin,WANG Lin-lin,MU Jing,LONG Hai-m ing(57)
Effects ofAl and Nb on microstructures and stress rupture property of long-time aging GH706 alloy…………………………………………………XIN Xin,SUN W en-ru,CHENG Li-ping,GUO Shou-ren,YANG Hong-cai,HU Zhuang-q(62)
Study on carbon gasification kinetics using non-isothermal thermogravimetric analysis……………………………………………………………………………………………………LIU Zhong-suo,WANG Q i,ZOU Zong-shu,TAN Guang-lei(68)
Analysis on radiative heat transfer considering scattering properties ofmedia in heating furnace…………………………………………………………………………………………………………………………MA Jin-feng,CHEN Hai-geng(72)
Study on treatment ofwastewater from cold mill by poly ferric chloride………………………………………………………………………………………………………………LIN Yong-zeng,WANG Guo-dong,LIU Xiang-hua,ZHU Cheng(75)
第9卷第2期
雙層復(fù)合熔劑性球團(tuán)的開(kāi)發(fā)研究 ………………… 尚 策,周明順,翟立委,魏 國(guó),沈峰滿 (79)
流渣反應(yīng)器內(nèi)含鈦高爐渣的流動(dòng)特性 …………… 劉中秋,張剛剛,張 力,李寶寬,隋智通 (82)
焦?fàn)t煤氣豎爐法生產(chǎn)直接還原鐵的煤氣用量探討 …………… 趙宗波,應(yīng)自偉,許力賢,姜茂發(fā) (88)
基于非線性HB I網(wǎng)絡(luò)的轉(zhuǎn)爐冶煉終點(diǎn)預(yù)測(cè)模型 …………… 馮明霞,陳 韌,李 強(qiáng),鄒宗樹(shù) (92)
BaF2-CaF2-CaCl2三元系熔鹽電解體系的物理化學(xué)性質(zhì)…………………………………………………………………………………… 楊 勇,柴永成,滕國(guó)春,翟秀靜,曹文亮,符 巖,張明杰 (97)
透輝石礦物合成及其光催化性實(shí)驗(yàn) ………………………… 楊澤健,楊 合,薛向欣,段培寧 (101)
碳熱還原法CaB6粉體的制備 ……………………………… 岳新艷,劉長(zhǎng)江,茹紅強(qiáng),喻 亮 (105)
磁控濺射 Co1-x-Ptx薄膜晶體的結(jié)構(gòu)與磁性能 … 肖 娜,楊 波,裴文利,趙 驤,秦高梧 (109)
熱軋帶鋼層流冷卻實(shí)時(shí)報(bào)表系統(tǒng)實(shí)現(xiàn) ……………………… 楊 紅,劉相華,徐海濤,楊 旸 (113)
熱連軋工藝對(duì)GH4648合金棒材組織與性能的影響 ……………………………………… 王世普 (116)
改型 GH4133A合金長(zhǎng)期時(shí)效的組織穩(wěn)定性研究 …………………………………………………………………………………………………………… 張冬梅 ,國(guó)振興,陳仲?gòu)?qiáng),牛昌安,史鳳嶺 (121)
Cu含量對(duì)汽車車身板用Al-1.0Mg-1.0Si-0.6Mn合金顯微組織的影響 …………………………………………………………………………………… 田 妮,趙 剛,黃 濤,王建軍,劉春明 (127)
Cu含量對(duì)Al-1.0Mg-1.0Si-0.6Mn薄板成形性及烤漆硬化性的影響 ……………………………………………………………………………………… 田 妮,趙 剛,王建軍,黃 濤,劉春明 (133)
T4態(tài)Al-Mg-Si合金板材的預(yù)時(shí)效工藝研究 …………………………………………………………………………………………… 田 妮,趙 剛,王建軍,黃 濤,聶 波,左 良,劉春明 (137)
汽車車身用Al-Mg-Si合金薄板織構(gòu)及 r值的研究 ……………………………………………………………………………………… 田 妮,趙 剛,王建軍,聶 波,黃 濤,左 良,劉春明 (143)
單晶硅和多晶硅切割廢料漿的回收 ……………… 邢鵬飛,郭 菁,劉 燕,莊艷歆,涂贛峰 (148)
混凝劑對(duì)污泥膨脹影響的實(shí)驗(yàn)研究 ……………… 馬興冠,薛向欣,馬志孝,崔 偉,傅金祥 (154)
Vol.9 No.2
Development of complex fluxed pelletwith double layer structure…………………………………………………………………………………………………………SHANG Ce,ZHOU M ing-shun,ZHA ILi-wei,W EI Guo,SHEN Feng-man(79)
Flow of blast furnace slagwith titanium in slag discharging reactor……………………………………………………………………………………………………LIU Zhong-qiu,ZHANG Gang-gang,ZHANG L i,LI Bao-kuan,SU I Zhi-tong(82)
A discussion on consumption of coke-oven gas forDR Iproduction in shaft furnace…………………………………………………………………………………………………………ZHAO Zong-bo,YING Zi-wei,Xu Li-xian,JIANGM ao-fa(88)
BOF end-point prediction model based on non-linear homotopic B I algorithm……………………………………………………………………………………………………………FENGM ing-xia,CHEN Ren,LI Q iang,ZOU Zong-shu(92)
Physicochemical properties ofBaF2-CaF2-CaCl2electrolyte system ……………………………YANG Yong,CHA I Yong-cheng,………………………………………TENG Guo-chun,ZHA I Xiu-jing,CAO W en-liang,FU Yan,ZHANGM ing-jie(97)
Study on diopside synthesis and its photocatalysis ………YANG Ze-jian,YANG He,XUE Xiang-xin,DUAN Pei-ning(101)
Preparation of CaB6powder by carbothermic method ……YUE Xin-yan,L IU Chang-jiang,RU Hong-qiang,YU Liang(105)
Structure and magnetic properties of sputtered Co1-x-Ptxmonolayer thin films………………………………………………………………………………………………………XIAO Na,YANG Bo,PEIW en-li,ZHAO Xiang,Q IN Gao-wu(109)
Implementation of real-time report system in hot-rolled strip laminar cooling…………………………………………………………………………………………………………………YANG Hong,L IU Xiang-hua,XU Hai-tao,YANG Yang(113)
Effect of hot continuous rolling process on the microstructure and properties of GH4648 alloy bar ………WANG Shi-pu(116)
Study of structure stability in modified GH4133A alloy after long-term aging………………………………………………………………………………ZHANG Dong-m ei,GUO Zhen-xing,CHEN Zhong-qiang,N IU Chang-an,SHI Feng-ling(121)
Effects of Cu content on the microstructures ofAl-1.0Mg-1.0Si-0.6Mn alloy used for automotive body sheets……………………………………………………………TIAN N i,ZHAO Gang,HUANG Tao,WANG Jian-jun,LIU Chun-m ing(127)
Effects of Cu content on the formability and bake-hardening ability ofAl-1.0Mg-1.0Si-0.6Mn aluminum alloy sheets……………………………………………………TIAN N i,ZHAO Gang,WANG Jian-jun,HUANG Tao,LIU Chun-m ing(133)
Pre-aging trea tment ofAl-Mg-Si aluminum alloy sheet for automotive panels in T4 temper…………………………………………………………TIAN N i,ZHAO Gang,WANG Jian-jun,HUANG Tao,N IE Bo,ZUO Liang,LIU Chun-m ing(137)
Study on texture andrvalues ofAl-Mg-Si alloy for automotive body sheets…………………………………………………………………………TIAN N i,ZHAO Gang,WANG Jian-jun,N IE Bo,HUANG Tao,ZUO Liang,LIU Chun-m ing(143)
Recovery of slurry produced in cuttingmono-/poly-silicon………………………………………………………………………………………………………………XING Peng-fei,GUO Jing,LIU Yan,ZHUANG Yan-xin,TU Gan-feng(148)
Study on effect influence of coagulant on filamentous sludge bulking………………………………………………………………………………………………………MA Xing-guan,XUE Xiang-xin,MA Zhi-xiao,CU IW ei,FU Jin-xiang(154)
第9卷第3期
魚雷罐車熱量損失的影響因素及控制方法 ………………… 劉詩(shī)薇,于景坤,顏正國(guó),劉 濤 (159)
KR法鐵水脫硫效果的影響因素分析 ………………………………… 姚 娜,興 超,李祥勝 (164)
CaO-S iO2-MgO脫硅渣起泡性能的研究 ……… 宋文剛,謝云飛,陳 濤,魏 國(guó),楊俊和 (168)
我國(guó)鋁電解槽計(jì)算機(jī)仿真技術(shù)的研究發(fā)展及現(xiàn)狀 ………………………………………………………………………………………………… 李劍虹,涂贛峰,戚喜全,毛繼紅,呂定雄,馮乃祥 (173)
多孔介質(zhì)中有效孔擴(kuò)散系數(shù)的試驗(yàn)測(cè)量 ………… 胥孝川,唐學(xué)義,孫承帥,姜元勇,徐曾和 (180)
硼酸鉀鈣復(fù)鹽 K2O·CaO·4B2O3·12H2O的制備 …… 畢 穎,田彥文,王國(guó)勝,劉 丹,劉寶雷 (184)
采用鈣鈦礦導(dǎo)電緩沖層提高 YBCO涂層導(dǎo)體臨界電流密度的可行性研究 …………………………………………………………………………………………… 李鳳華,羅清威,李英楠,樊占國(guó) (189)
集團(tuán)變分法(CVM)的發(fā)展與應(yīng)用 ……………………………………… 蔣 敏,李洪曉,郝士明 (193)
熱變形行為對(duì)20鋼奧氏體晶粒形貌的影響 ……………… 馬寶國(guó),任海鵬,王立軍,劉春明 (198)
AM60鎂合金方向盤骨架壓鑄充型過(guò)程數(shù)值模擬 ………… 毛萍莉,金 銳,周 樂(lè),劉 正 (202)
卷取溫度對(duì)X80管線鋼析出行為與性能的影響 ………………………………… 王 煒,谷海容 (207)
氧化鈰摻雜氧化鋯的等溫和非等溫馬氏體相變 ……… 音田哲彥,原純平,陳中春,早川元造 (211)
T6處理對(duì)Mg-10Gd-3Y-0.6Zr合金組織及拉伸性能的影響 …………………………………………………………………………………………… 林 丹,王 磊,孟凡強(qiáng),崔建忠,樂(lè)啟熾 (217)
非比例加載下電鍍銅箔的晶粒長(zhǎng)大行為 ………………………… 小野勇一,李 成,日野大輔 (222)
高密度燒結(jié)金屬齒輪的承載能力 ………………… 八杉拓哉,小出隆夫,宮近幸逸,竹增光家 (229)
機(jī)械零件及系統(tǒng)可靠性分析方法………………………………………………… 高 鵬,謝里陽(yáng) (234)
Vol.9 No.3
Factors and controlmethods of the heat loss of torpedo-ladle ……………………………………………………………………………………………………………………………………LIU Shi-wei,YU Jing-kun,YAN Zheng-guo,Liu Tao(159)
Effect of hotmetal desulfurization factors in KR method ………………………YAO Na,XING Chao,LI Xiang-sheng(164)
Study on the foaming properties of CaO-SiO2-MgO slag in desiliconisation process…………………………………………………………………………………………SONGW en-gang,XIE Yun-fei,CHEN Tao,W EI Guo,YANG Jun-he(168)
Research status and development prospect on computer simulation technology for aluminum electrolytic cell in China…………………………………LI Jian-hong,TU Gan-feng,Q I Xi-quan,MAO Ji-hong,LüD ing-xiong,FENG Nai-xiang(173)
Measurement of effective diffusivity in porousmedia……………………………………………………………………………………………………………XU Xiao-chuan,TANG Xue-yi,SUN Cheng-shuai,JIANG Yuan-yong,XU Zeng-he(180)
Synthesis of potassium and calcium borate K2O·CaO·4B2O3·12H2O……………………………………………………………………………………………………………B I Ying,TIAN Yan-wen,WANG Guo-sheng,LIU Dan,LIU Bao-lei(184)
Feasibility study of improving the critical current density of YBCO coated conductorwith perovskite conductive buffer layer…………………………………………………………LI Feng-hua,LUO Q ing-wei,LI Ying-nan,FAN Zhan-guo(189)
Recent developments and applications of cluster variation method(CVM)………………………………………………………………………………………………………………………………JIANGM in,LI Hong-xiao,HAO Shi-m ing(193)
The effects of hot deformation behavior on austenite grain morphology of 20#steel………………………………………………………………………………………………………MA Bao-guo,REN Hai-peng,WANG Li-jun,LIU Chun-m ing(198)
Die casting process simulation ofmagnesium AM60 steeringwheel frame………………………………………………………………………………………………………………………………MAO Ping-li,JIN Rui,ZHOU Le,LIU Zheng(202)
Influence of coiling temperature on precipitate and property of X80 pipeline steel …………WANGW ei,GU Hai-rong(207)
Isothermal and athermalmartensitic transformations of ceria doped zirconia……………………………………………………………………………………………………Tetsuhiko Onda,Junpei Hara,Zhong Chun-Chen,M otozo Hayakawa(211)
Effects of T6 treatment on microstructure and tensile properties ofMg-10Gd-3Y-0.6Zr alloy…………………………………………………………………………LIN Dan,WANG Lei,M ENG Fan-qiang,CU I Jian-zhong,LE Q i-chi(217)
Grain growth behavior in electrodeposited copper foil under nonproportional loading……………………………………………………………………………………………………………………………Yuichi ONO,Cheng LI,Daisuke HINO (222)
Load bearing capacity of high density sintered metal gears…………………………………………………………………………………………………………………………Takuya Yasugi,Takao Koide,Kouitsu M iyachika,Teruie Takemasu(229)
An approach to reliability analysis ofmechanical components and systems ……………………GAO Peng,XIE L i-yang(234)
第9卷第4期
EH36鋼連鑄坯角部橫裂熱模擬試驗(yàn)研究 ……… 竇力威,于賦志,魏 國(guó),丁智敏,沈峰滿 (237)
GCr15軸承鋼連鑄過(guò)程中熱物性參數(shù)的研究 ………………………… 李曉濱,丁 樺,唐正友 (241)
鉻鉬合金化對(duì)高錳鋼疲勞性能的影響 …………………………………………………………………………………………………… 王 輝,譚小東,劉興剛,田學(xué)鋒,陳曉剛,田 鋒,張國(guó)志 (245)
凝固冷速與時(shí)效時(shí)間對(duì)CaMgSn形態(tài)的影響 ……………… 邱克強(qiáng),李榮華,王俊杰,楊君寶 (250)
一種高硬度鑄造鎂合金 …………………………… 任英磊,王俊杰,李榮華,楊君寶,邱克強(qiáng) (255)
包覆法制備 Gp/SiC復(fù)合材料的顯微結(jié)構(gòu)和性能 …………………………………………………………………………………………………………… 喻 亮,闞 東,茹紅強(qiáng),岳新艷,蘭 勇 (260)
高錳TR IP/T W IP鋼變形行為的研究進(jìn)展 ……………………………………… 丁 樺,楊 平 (265)
應(yīng)變速率對(duì) 18Cr-12Mn-0.55N高氮奧氏體不銹鋼塑性流變行為的影響………………………………………………………………………………… 徐明舟,王建軍,王立軍,崔文芳,劉春明 (273)
冷軋鋼板表面清潔度對(duì)耐蝕性的影響 …………… 許 斌,劉春明,安成強(qiáng),王雙紅,于曉中 (277)
Mg-T M(T M=Cu,Ni,Zn)-Y體系長(zhǎng)周期有序(LPO)相的研究 ……………………………………………………………………………………………………… 蔣 敏,張俊峰,李洪曉,郝士明 (282)
共線多孔邊裂紋的應(yīng)力強(qiáng)度因子研究 ……………………… 趙晉芳,謝里陽(yáng),劉建中,趙 群 (285)
氧化鋁基氧化物/氧化物復(fù)合材料的合成與評(píng)價(jià)……………………………………………………………………………………………………… 江角誠(chéng),野本大輔,赤尾尚洋,音田哲彥,陳中春 (290)
端銑中工具進(jìn)給速度的最佳化 ………… 二宮裕司,田中久隆,佐藤昌彥,岡村進(jìn),寺嶋一真 (296)
簡(jiǎn)單自適應(yīng)控制在水壓伺服缸系統(tǒng)中的應(yīng)用 ……… 山田剛史,伊藤和壽,池尾茂,西村正治 (300)
干硬性混凝土在 SP預(yù)應(yīng)力空心板中應(yīng)用 ………………………………………………… 王 坤 (304)
Vol.9 No.4
Study of the rmal simulation on transversal corner crack of EH36 slab…………………………………………………………………………………………………DOU Li-wei,YU Fu-zhi,W EI Guo,D ING Zhi-m in,SHEN Feng-m an(237)
Study of the rmo-physical properties for GCr15 bearing steel in continuous casting………………………………………………………………………………………………………………………LI Xiao-bin,D ING Hua,TANG Zheng-you(241)
Effects of Cr andMo on fatigue property of ZG Mn13……………………………………………………………………………WANG Hui,TAN Xiao-dong,L IU Xing-gang,TIAN Xue-feng,CHEN Xiao-gang,TIAN Feng,ZHANG Gui-zhi(245)
Effects of cooling rates of solidification and aging time on the morphologies of CaMgSn phase…………………………………………………………………………………………Q IU Ke-qiang,LI Rong-hua,WANG Jun-jie,YANG Jun-bao(250)
A castmagnesium alloywith high hardness………………………………………………………………………………………………………………………………REN Ying-lei,WANG Jun-jie,L I Rong-hua,YANG Jun-bao,Q IU Ke-qiang(255)
Microstructure and properties of Gp/SiC composite by coatingmethod…………………………………………………………………………………………………………YU Liang,KAN Dong,RU Hong-qiang,YUE Xin-yan,LAN Yong(260)
Research in defo rmation behaviors of highMn TR IP/T W IP steels ……………………………D ING Hua,YANG Ping(265)
Effect of strain rate on plastic flow behavior of 18Cr-12Mn-0.55N high nitrogen austenitic stainless steel……………………………………………………XU M ing-Zhou,WANG Jian-jun,WANG Li-jun,CU IW en-fang,LIU Chun-m ing(273)
Influence of cleanness on corrosion resistance of cold-rolled steel………………………………………………………………………………………………XU B in,LIU Chun-m ing,AN Cheng-qiang,WANG Shuang-hong,YU Xiao-zhong(277)
Study on the long period ordered(LPO)phase in theMg-T M(T M=Cu,Ni,Zn)-Y systems………………………………………………………………………………………JIANGM in,ZHANG Jun-feng,LI Hong-xiao,HAO Shi-m ing(282)
Study on stress intensity factor ofmultiple cracks at collinear holes………………………………………………………………………………………………………………………ZHAO Jin-fang,XIE Li-yang,LIU Jian-zhong,ZHAO Qun(285)
Synthesis and characterization of alumina-matrix oxide/oxide composites……………………………………………………………………………M akoto EZUM I,Daisuke NOMOTO,Takahiro AKAO,Tetsuhiko ONDA,Zhong-Chun CHEN (290)
Tool feed rate opt imization for smoothening of cutting force in end milling………………………………………………………………………Yuji N INOM IYA,Hisataka TANAKA,M asahiko SATO,Susum u OKAMURA,Kazum a TERASH IMA (296)
Application of s imple adaptive control to water hydraulic servo cylinder system……………………………………………………………………………………………Tsuyoshi YAMADA,Kazuhisa ITO,Shigeru IKEO,M asaharu N ISH IMURA (300)
Applied study on SP prestressing board of nonplastic concrete ………………………………………WANG Kun(304)