Dissolution of metals utilizing tungsten-diol complexes 2
A solution containing H2SO4, H2O2 and catalytic amount of tungsten-diol complex is used to accelerate the rate of dissolving metals. This invention relates to the dissolution of metal in...
Method to prepare water stabilizer pom adipic dinitrile waste
Mother liquor is prepared by mixing adipic dinitrile waste, phosphoric acid (as promoter) and water in proper proportion. This mother liquor is again mixed with an anti-foulant, such as ...
7
85107487
Steel articles with wear-resistant, corrosion-proof coating
This invention is to form a coating of polyaminoformicester on its surface after the whole or part of the surface of a steel article has been pretreated. The coating is formed by the rea...
Method resolving tin dioxide film
This invention relates to a method for resolving the crystal film of tin dioxide, attached to the surface of backing material. Under normal temp. and pressure, the backing material attac...
Passivating process for surface of copper and its alloy
This invention is characterized by: (1) dilute chromic acid treatment is performed after bright acid dipping (polishing) procedure; (2) the concn. of oxalic acid polishing solution is do...
12
86100581
Overhead metallic pipe cathode protector
Overhead metallic pipe cathode protector contains a protective construction (the metallic pipe to be protected is taken as a cathode, the solid electrolyte coating as a continuous phase,...
13
86103500
Co-inhibited paint for resisting atmospheric corrosion
This invention presents a kind of co-inhibited paint which improves the ability of prevention of atmospheric corrosion many-folds, and is particularly fit for the coinhibited paint for p...
14
86101821
Corrosion protection for heat exchanger
The present invention concerns an anode corrosion protector for heat exchanger, which consists of cathodes disposed at the inlet and the outlet of the corrosive medium and an anode forme...
Corrosion inhibitor for iron and steel
The invention provides a corrosion inhibitor for iron and steel. In composition, it contains 0.4-6 (wt.%) of plant extractive, and it makes carbon steel and iron excellent in inhibitive ...
Anticorrosion and antistatic reenforced tining
The lining is made of lattice frame formed with metal bars and metal nets spot welded on the inside wall of metal cases and filled and coated with plastics containing anti-static agent. ...
20
86105112
Practical current cathode protection system The system includes means for cyclically putting into operation a circuit for controlling and regulating a DC generator connected between the structure to be protected which constitutes a...
Process for producing heat pipe A process for producing a heat pipe including the steps of treating the inner surface of a steel container with an aqueous solution of a vanadate with heating, and enclosing in the contai...
26
87102993
New techhique for protection against stray currents
In the regions abounding with stray currents, the prior technic for eliminating the stray currents around the underground metallic structures and the device providing cathodic protection...
27
87102767
Process for treatment of thin metal film by photoetching A photoetching method for processing a thin metal sheet to produce apertured shadow masks. The disclosed method utilizes a supporting layer for supporting a metal sheet. A photoresist lay...
28
87101014
Etch-out metallic print
The present invention relates to the field of duplicating and printing technology on metallic surface. In the production of etch-out metallic print, a picture is first duplicated on po...
Marine biofouling reduction
The simultaneous release into the seawater of copper and chlorine ions and which cooperate in a synergistic manner provides an unexpected and unpredictable enhancement of the biocidal ef...
31
87103379
Cooling water corrosion inhibition method A method for inhibiting corrosion in industrial cooling waters which contain hardness and a pH of at least 6.5, by dosing the water with a composition which comprises a water-soluble inor...
32
87105554
Method for chemical treatment of aluminium surface
The chemical treatment of aluminium surface, comprising acid etching by photoimaging and spraying an anticorrosive coating, can provide a corrosion-resistant aluminium alloy sheet suitab...
A method of anticorrosive treatment for soft water Boilers A method of anticorrosive treatment for soft water boilers to prevent iron family metals from corrosion, especially from pitting corrosion, which is characterized by adding, to a boiler w...
37
88100861
Method to substitute silver in the alkali evaporator
The invention relates to the material selection of the alkali evaporator and the technology to reduce the corrosion of alkali evaporator due to alkali by adding composite corrosion inhib...
Thermoprinting technique of mould polyolefin copy
The invention relates to pattern on mould surface and the processing technique. The duplicating sample, zinc etching, polyolefin film, sticky and elastic material and 501 or 502 printing...
40
88105380
Dewatering type water film replaceable antirust oil
The present invention is a dewatering type water film replaceable anti-rust oil used for mechanical products or parts made from ferrous metal, it can eliminate directly the aqueous clean...
41
88101386
Protection and application for wall of metallic product
The invention relates to protective technique of metallic wall. The molten plastic, dissolved resin and rubber as well as the cement mixed into the slurry are coated on the metallic wall...
42
88101165
Rust preventing emulsion
This invention belongs to the rust prevention technique in the field of chemical engineering and machinery. Generally, spraying paint, immersing in oil and passivating liquor are used to...
43
88102931
Method for making shadow masks A method of manufacturing a shadow mask, comprising the steps of forming a first resist pattern having a large number of openings on one major surface of a thin metal plate and a second r...
Method for recovering molybdenum sheet
This invention is used to recover the molybdenum sheet of waste transistor core in the development and production of power semiconductor devices. its technical key lies in two chemically...
Stainless steel general colour corrosion imaging technique
The process for stainless steel surface decoration features that by adopting photomechanical process, chemical solution corrosion, portraits landscapes are reproduced on stainless steel ...
Silicon sheet sheared edge rust preventive and making method
Antirusting agent for silicon sheet sheared edge and fabrication are published in this invention. The benzochorizole is solved by the N,N-dimethyl formamide at atmospheric temp. and pres...
53
88108365
Metal surface refinement using dense alumina-based media
The invention provides a physicochemical process for refining relatively rough metal surfaces to a condition of high smoothness and brightness, in relatively brief periods of time, which...
17 alkenyl imidazoline corrosion inhibitor for oil field
This corrosion inhibitor is made of (N-hydroxyethyl-N'-hydroxyethyl-N',N'-dicarboxymethyl ethylenediamine) octodecamide sodium salt 15-30% and 1-hydroxyethyl-2-heptadealkenyl-3, 3-dicarb...
Corrosion inhibitor of cooled water in closed cycle
For the corrosion retarding agent of silicon series sodium silicate is used as main ingredient, except for being supplemented with hydroxy ethylidene diphosphoric acid, sodium gluconate,...
60
89106929
Process for surface treatment of fastening elements
The present invention relates to a surface treatment method of fixing component. It is characterized by that after the fixing component is galvanized and processed with chromate, the chr...
61
89109048
Die space surface processing method and equipment
The equipment comprises a movable shower including liquid collecting tank, compression pump and recovering reservoir to process and etch the cavity surface of a large mould instead of tr...
62
89108743
High efficienct corrosion retarder for IC engine cooling liquid
The invented high efficiency corrosion retarder is composed of sodium tetra borate. sodium nitrite, sodium silicate, benzotriazole, polymaleic acid anhydride, ethylene-diamine tetramethy...
63
89105793
Super thin anti-rust oil for ferrous metal products
The present invention relates to an antirust oil that is composed of engine oil, kerosene and additives. Similar products at home and abroad often have the following shortcomings:higher ...
One-step technology for fast carving on steel
This one-step technology can perform fast and deep chemical etching for steel workpiece. As its etching liquid contains a protective additive that can form a slope by itself, the side su...
Chemical etching method on aluminium plate
A needed pattern is taken on a negative film and an image is formed on a silk screen coated with photosensitive material. By use of silk-screen printing, the pattern is printed on an alu...
68
90106988
Prodn. of protecting agent for chromium-plated piece
This invention provides a process for producing a protective agent used for sarface dedusting and corrosion-proofing of chrome-plated work pieces. It uses phosphoric acid as main constit...
69
90106360
Treating agent for alkaline composite water
This invention relates to a new-type compounded alkaline water treating agent used in cyclic heat supply or cooling systems for preventing dirt, rust, algae and water loss in the apparat...
Recovery method for copper from waste etching solution
This invention relates to a method for recovering Cu from waste alkaline and acidic etching solutions. Said two kinds of etching solution are mixed and hydrochloric acid is used to regul...
73
91102892
Metallic sheets with convex particles surface
After the metal plate is coated with photoresistance liquor, it is covered with a transparent positive film with pattern to be formed. Through exposure and washing with clean water, the ...
Reinforced concrete antirust wire pole
The anticorrosive reinforced concrete pole is presented in this invention, it belongs to anticorrosion technique of reinforced concrete products. For this anticorrosion technique, the an...
77
91103127
Method for tceating boiler scale
Xylosma japonicum is made into segments in a certain length and diameter by sawing and spilting them, and the segments are tied into bundle whose size is correspondant to the capacity of...
78
91104791
Gold dissolving process and liquid for gold coated article
The gold dissolving liquor is an acidic liquor containing CNS--Fe ions, and the gold dissolving process includes (1) preparing gold dissolving liquor containing CNS---Fe ions, (2) ...
Cyclic cleaning method and cleaning agent for calcareous scale
This invention relates to a cleaning method and agent for removing calcareous encrustation, especially used for cleaning sugary dirt in sugar-manufacturing industry. The process involves...
82
91107264
Checkering technology with figure roller and pattern plate
The invention provides a photo-etch technique which can make convex/concave patterns on roller (mould). It includes mainly film design, film pattern positioning and how to control the p...
Efficient electrolysis incrustation-inhibiting device
This invention relates to a device for inhibiting incrustation in water equipment such as exaporating concentratoras or boilers. Based on the principle that charged particles in an elect...
Method for preparing ferromagnetic fluid form waste pickle
The technological processes include oxidation phase turning two-valence Fe into three-valence Fe, ferrite codeposition reaction resulting Fe3O4 particles and surface treatment. The prese...
Process for rust preventing treatment of cast iron pot
The present invention belongs to the technical field of daily life necessarise. In the said treatment process, iron casting is soaked with heated edible oil so that a layer of protecting...
91
92106291
Producing process for air-phase corrosion inhibitor
The feature of this invention is that tertiary amine with a general formula of (CnH2n 1)2NCH2CH2OH(n=1-3) is mixed with capric acid at 60-70 deg.C., another part of above tertiary amine ...
92
92108479
Cathode protective method on outside of pot bottom
This invention includes a sandwich protective structure: a compound cushion which is constituted by graphite anode layer and solid electrolyte layer is laid on the original foundation of...
93
92108521
Corrosion inhibitor for ironware cultural relic
The present invention uses benzotrichloroazole (BTA) as corrosion inhibitor for iron-ware cultural relic and has obtained unexpected result. The experiment verified that the lower concen...
94
92108213
Cathode protection method for rail rust in tunnel
Based on a boundary state corrosion mechanism model of soil corrosion and moisture atmosphere corrosion, which is formed by 70-100% humidity in tunnel and a aqueous film condensed on ste...
95
92109958
Multi-functional corrosion inhibior
A kind of multifunction corrosion inhibitor used for preventing the water carriage equipment from corrosion in course of operation and of chemical descaling is comprised of adsorptive co...
96
92110057
Electrolytic-chemical joint corrosion method for copper pattern
A method of etching copper patterns by combined electrolysis and chemical corrosion is disclosed. Anode is the copper workpiece which has been painted with photoetching latex, exposed, d...
97
92109528
High-remp. oil phase corrosion inhibitor
The present invention provides a new kind of high temp oil phase corrosion inhibitor for petroleum refining apparatus and pipeline. It is a kind of organic film-forming corrosion inhibit...
98
93102176
Oil-soluble corrosion inhibitor in use for refinery
An oil-soluble corrosion inhibitor, an imidazolinylamide for metallic corrosion prevention features excellent anticorrosive performance to H2S-HCl-H2O system, better compatibility with a...