Tag Archives: corrosion

Brass surface treatment process for resisting atmospheric corrosion

Application Number: 00123065Application Date: 2000.10.12Publication Number: 1349006Publication Date: 2002.05.15Priority Information: International: B05D3/10;B05D7/16;C23C22/63Applicant(s) Name: INst. of Metals, Chinese Academy of SciencesAddress: Inventor(s) Name: Han Wei;Han Wen'an;Wang ZhenyaoPatent Agency Code: 21002Patent Agent: xu zongfuAbstract This invention relates to a treatment method for brass atmospheric corrosion-proof surface. It is characterized by that an object has a passivated substrate… Read More »

Gas supplying system of mixed atmosphere for high-temp corrosion thermal balance measuring equipment

Application Number: 00123283Application Date: 2000.11.22Publication Number: 1354359Publication Date: 2002.06.19Priority Information: International: G01N5/00;G01N17/00Applicant(s) Name: Inst. of Metals, Chinese Academy of SciencesAddress: Inventor(s) Name: Long Kang;Fu Guangyan;Niu YanPatent Agency Code: 21002Patent Agent: zhang chenAbstract The invention discloses a gas supply system for feeding gas mixture with measuring balance set used in condition of high temperature and corrosion.… Read More »

Method for retarding corrosion to CS2 bricks of electric furnace

Application Number: 00113058Application Date: 2000.06.20Publication Number: 1283776Publication Date: 2001.02.14Priority Information: International: C01B31/26;F27D1/16Applicant(s) Name: Technical Certer, Yunan Copper Industry (Group) Co., Ltd.Address: Inventor(s) Name: Zhang Yu;Zhang Jun;Zhao Zhen'gangPatent Agency Code: 53106Patent Agent: li yunAbstract A method for retarding the corrosion to the bricks of electric CO2 generating furnace features that quartz sand is added into furnace… Read More »

Flame-retarding wave-absorbing antiwear multifunctional nano composite film resisting rubbing, corrosion and oxidization

Application Number: 00123335Application Date: 2000.11.29Publication Number: 1355332Publication Date: 2002.06.26Priority Information: International: C23C20/08Applicant(s) Name: Inst of Metals, Chinese Academy of SciencesAddress: Inventor(s) Name: Liang Yong;Zhou Rongcan;Xian QuangangPatent Agency Code: 21002Patent Agent: zhang chenAbstract A nm-class multifunctional composite film is prepared from nanometer powder and the salt or alkoxide of Si, Al, or Zr as main raw… Read More »

Composite metal-polymer coating to prevent hot-alkali pressure container from cracking owing to stress and corrosion

Application Number: 00113817Application Date: 2000.05.22Publication Number: 1274766Publication Date: 2000.11.29Priority Information: International: C23C4/08;C23C4/18Applicant(s) Name: Xi'an Jiaotong Univ.Address: Inventor(s) Name: Han Zhihai;Chen Hua;Chen LiliPatent Agency Code: 61200Patent Agent: jia yujianAbstract The composite metal-polymer coating includes a Ni-Cr alloy base layer adhered to metal substrate, a Fe-Cr-Ni alloy face layer on the base layer, and a surface closing… Read More »

Low-alloy steel for oil casing pipe capable of resisting corrosion of CO2 and sea water

Application Number: 00125882Application Date: 2000.10.30Publication Number: 1292429Publication Date: 2001.04.25Priority Information: International: C22C38/22Applicant(s) Name: Baoshan Iron & Steel Co. Ltd.Address: Inventor(s) Name: Zhang Zhonghua;Guo JinbaoPatent Agency Code: 31209Patent Agent: he wenxinAbstract The chemical composition of low-alloy steel for making oil production casing pipe capable of resisting CO2 and sea water corrosion is formed from (wt%) 0.01-0.20%… Read More »

Metal carbide coating to prevent hot corrosion of boiler overheater in power station

Application Number: 00113819Application Date: 2000.05.22Publication Number: 1274767Publication Date: 2000.11.29Priority Information: International: C23C4/10;F16L58/04Applicant(s) Name: Xi'an Jiaotong Univ.Address: Inventor(s) Name: Han Zhihai;Chen Hua;Chen LiliPatent Agency Code: 61200Patent Agent: jia yujianAbstract The metal-carbide coating includes a Ni-Cr-Al alloy base layer adhered to metal substrate, a mixed NiCr-Cr3C2 and NiCrAl face layer covering the base layer, and a surface… Read More »

Method for producing permanent magnet based on rareearth metal having corrosion resistant film

Application Number: 00126407Application Date: 2000.08.30Publication Number: 1286483Publication Date: 2001.03.07Priority Information: 2000/8/7 JP 238587/2000; 1999/8/30 JP 243473/1999International: H01F41/02;H01F7/02Applicant(s) Name: Sumitomo Special Metal Co., Ltd.Address: Inventor(s) Name: Nishiuchi Takeji;Kikukawa Atsushi;Kikui FumiakiPatent Agency Code: 11038Patent Agent: long chuangongAbstract The present invention provides a process for producing a rare earth metal-based permanent magnet having, on its surface, a corrosion-resistant… Read More »

High corrosion resistant porous baked carbon brick for lining of blast furnace

Application Number: 00116085Application Date: 2000.10.18Publication Number: 1290755Publication Date: 2001.04.11Priority Information: International: C21B7/06Applicant(s) Name: Ye LeAddress: Inventor(s) Name: Ye Le;Li JianweiPatent Agency Code: 41103Patent Agent: han huaAbstract The porous baked carbon brick has material cmprising electrically calcined anthracite 45-60 wt%, silicon 3-7 wt%, titanium 5-25 wt%, artificial graphite 8-15 %, coal asphalt 10-15 wt% and resin… Read More »

High temperature high corrosion resistant butterfly valve

Application Number: 00116614Application Date: 2000.06.20Publication Number: 1311406Publication Date: 2001.09.05Priority Information: International: F16K1/22Applicant(s) Name: Ji ZhuhuaAddress: Inventor(s) Name: Ji ZhuhuaPatent Agency Code: 00000Patent Agent: Abstract A butterfly valve of high temperature and high corrosion resisting is designed in optimum parameters by the computers with special geometrical structure to get a minimum monent of force in on… Read More »

Ultrasonic method and equipment for testing resistance of material to corrosion and abrasion

Application Number: 00120721Application Date: 2000.07.14Publication Number: 1334455Publication Date: 2002.02.06Priority Information: International: G01N3/56;G01N5/00;G01N17/00;G01N29/00Applicant(s) Name: Inst of Mechnics, Chinese Academy of SciencesAddress: Inventor(s) Name: Li Chengming;Zhang Yong;Cao EryanPatent Agency Code: 31002Patent Agent: gao cunxiuAbstract An ultrasonic method for testing the resistance of material to corrosion and abration is disclosed. Its equipment is composed of ultrasonic generator and… Read More »

Anti-atmosphere corrosion steel

Application Number: 00121262Application Date: 2000.08.11Publication Number: 1280207Publication Date: 2001.01.17Priority Information: International: C22C38/16Applicant(s) Name: Iron and steel Research general Inst.Address: Inventor(s) Name: Liang Caifeng;Hou WeitaiPatent Agency Code: 11207Patent Agent: cheng guanghuAbstract The present invention relates to alloy steel resisting atmosphere corrosion. The alloy resisting atmosphere corrosion has the chemical composition of: C 0.085-0.15 wt%, Si 0.30-0.50… Read More »

Process for suppressing corrosion of cyclic cooling water

Application Number: 00121541Application Date: 2000.08.11Publication Number: 1338437Publication Date: 2002.03.06Priority Information: International: C02F5/10;C23F11/10Applicant(s) Name: Chinese Petro-Chemical Co LtdAddress: Inventor(s) Name: Wang Zheng;Chen Yongjun;Li BengaoPatent Agency Code: 72001Patent Agent: xu shuAbstract A process for suppressing the corrosion of cyclic cooling water features that a corrosion inhibitor containing C1-C5 alkylcarboxylic acid substituted salicylaldehyde oxime and optional one or… Read More »

Method and system for preventing conductive structure from being corrosion

Application Number: 00122771Application Date: 2000.08.14Publication Number: 1298770Publication Date: 2001.06.13Priority Information: 1999/12/9 US 09/457,328; 2000/6/2 US 09/585,397International: B05D7/14;B05D5/12;C09D5/10;C23F13/00Applicant(s) Name: Applied Semi-conductor Corp.Address: Inventor(s) Name: Arthur J. Spivarch;Devid B. DolinPatent Agency Code: 11038Patent Agent: wang yonggangAbstract A system for preventing corrosion of a surface of a metal structure in contact with a corrosive environment comprising:(a) a semiconductive… Read More »

Corrosion inhibitor of copper and its preparing process

Application Number: 00110308Application Date: 2000.04.11Publication Number: 1273283Publication Date: 2000.11.15Priority Information: International: C23F11/14Applicant(s) Name: Julong Inst. of Anti-Corrosion Technology, Shenyang CityAddress: Inventor(s) Name: Yu Fengqi;Yu Fengming;Yu JiePatent Agency Code: 21101Patent Agent: yang binAbstract A corrosion inhibitor of copper is prepared from benzotriazazole, industrial alcohol as solvent and water through proportional mixing and regulating pH value to… Read More »

Corrosion- and high-temp-resistant stainless steel and its application

Application Number: 00110254Application Date: 2000.03.24Publication Number: 1266910Publication Date: 2000.09.20Priority Information: International: C22C38/18Applicant(s) Name: Yi JiabiaoAddress: Inventor(s) Name: Yi JiabiaoPatent Agency Code: 21204Patent Agent: zhang qunAbstract A corrosion- and high-temp.-resistant stainless steel contains Cr (12-25), Si (0.9-1.5), Al (0.7-1.7), C (0.025-0.03), N (0.01-0.015), Mn (0.04-0.06), S (0.03-0.035), P (0.02-0.25) and Fe (the rest). Its advantages are… Read More »

Water injecting corrosion inhibitor for oil field

Application Number: 00109688Application Date: 2000.06.21Publication Number: 1277241Publication Date: 2000.12.20Priority Information: International: C09K15/04;F16L58/00Applicant(s) Name: Inst. of Petroleum Pipeline Material, China Petroleum & Natural Gas Corp.Address: Inventor(s) Name: Zhang Yufang;Lu MinxuPatent Agency Code: 11215Patent Agent: rong duizhangAbstract The corrosion inhibitor includes imidazoline quaternary ammonium derivative 70-80wt%, alkynol 5-10wt%, one kind of alkali metal iodide 3-5wt%, one other… Read More »

Corrosion inhibitor resisting CO2 corrosion for oil field

Application Number: 00109687Application Date: 2000.06.21Publication Number: 1277240Publication Date: 2000.12.20Priority Information: International: C09K15/04;F16L58/00Applicant(s) Name: Inst. of Petroleum Pipeline Material, China Petroleum & Natural Gas Corp.Address: Inventor(s) Name: Zhang Yufang;Lu MinxuPatent Agency Code: 11215Patent Agent: rong duizhangAbstract The corrosion inhibitor includes sulfur-containing imidazoline derivative 25-40wt%, alkyl phosphate 20-30wt%, alkynol 5-15wt%, non-ionic surfactant 10-20wt% and solvent 20-30wt%. It… Read More »

High-strength, high-toughness and corrosion resistant mooring chain steel and its production process

Application Number: 00109053Application Date: 2000.06.02Publication Number: 1281906Publication Date: 2001.01.31Priority Information: International: C22C38/48Applicant(s) Name: Jiangyin Xingcheng Iron & Steel Co. Ltd.Address: Inventor(s) Name: Zhang Weiji;Zhu Yiming;Li GuozhongPatent Agency Code: 11230Patent Agent: zhang ejunAbstract The present invention relates to a high-strength, high-toughness and corrosion-resisting steel for mooring chain and its production process. Said steel contains (wt%) C… Read More »

Composite corrosion inhibitor for high-temperature high-density test liquid

Application Number: 00107565Application Date: 2000.05.19Publication Number: 1324960Publication Date: 2001.12.05Priority Information: International: C23F11/16Applicant(s) Name: Jianghan Petroleum CollegeAddress: Inventor(s) Name: Shu Fuchang;Peng Fang;Mei PingPatent Agency Code: 11240Patent Agent: liu guobengAbstract A compound corrosion inhibitor applicable to high-temp. high-density test liquor includes main corrosion inhibitor, auxiliary corrosion inhibitor and supressing agent, in which the main corrosion inhibitor is… Read More »

Corrosion technique of anisotropic nitride by inlay corrosion method

Application Number: 00106557Application Date: 2000.04.12Publication Number: 1271871Publication Date: 2000.11.01Priority Information: 1999/4/26 US 09/299,137International: G03F7/004;H01L21/311;H01L21/336;H01L21/762;H01L21/823Applicant(s) Name: IBM Corp.Address: Inventor(s) Name: D. C. Boyd;S. M. Boerns;H. I. HannafyPatent Agency Code: 11038Patent Agent: wang yonggangAbstract A process and etchant gas composition for anisotropically etching a trench in a silicon nitride layer of a multilayer structure and an etchant… Read More »

Corrosion resistance and wear-resistance decoration coatings

Application Number: 00106415Application Date: 2000.03.01Publication Number: 1268535Publication Date: 2000.10.04Priority Information: 1999/3/1 US 09/259,341International: C23C14/06Applicant(s) Name: Moln Co., Ltd.Address: Inventor(s) Name: T. J. Oblien;I. Sang;B. L. TlotmanPatent Agency Code: 11038Patent Agent: chen jizhuangAbstract A new article of manufacture, for example a faucet or other article of hardware, has a specified decorative color, other than brass, and… Read More »

Stress corrosion resistant low-alloy pipe cluster of air cooler

Application Number: 00106074Application Date: 2000.04.20Publication Number: 1271840Publication Date: 2000.11.01Priority Information: International: F28D1/00;F28D1/04;F28D1/06;F28F1/18Applicant(s) Name: Shu RuntaoAddress: Inventor(s) Name: Shu RuntaoPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to an air cooling system used in petro-chemical and electric power fields. The low-alloy (12Cr2AlMoV) sheet material and finned tubes, which can resist the stress corrosion of… Read More »

Stress corrosion resistant low-alloy pipe cluster of air cooler

Application Number: 00106073Application Date: 2000.04.20Publication Number: 1271839Publication Date: 2000.11.01Priority Information: International: F28D1/00;F28D1/04;F28D1/06;F28F1/18Applicant(s) Name: Shu RuntaoAddress: Inventor(s) Name: Shu RuntaoPatent Agency Code: 00000Patent Agent: Abstract An air cooler used in petro-chemical and electric power air cooling systems features that the low-alloy (09Cr2AlMoRE) sheet material and finned tubes, which can resist the stress corrosion of H2S and… Read More »

Cheap Ni alloy resisting strong corrosion

Application Number: 00105108Application Date: 2000.03.26Publication Number: 1315585Publication Date: 2001.10.03Priority Information: International: C22C19/05Applicant(s) Name: Dong YuanyuanAddress: Inventor(s) Name: Dong Yuanyuan;Liu Yonggang;Nie FurongPatent Agency Code: 00000Patent Agent: Abstract An Ni alloy able to resist strong corrosion contains Ni(49-52%), Cr(22-26), Fe (15-19), Nb (1-5), S or P (less than or equal to 0.02), Si (less than or equal… Read More »