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264results about How to "Strong rust resistance" patented technology

Micro-emulsified water-soluble cutting fluid and preparation method thereof

The invention discloses micro-emulsified water-soluble cutting fluid and a preparation method thereof. The micro-emulsified water-soluble cutting fluid comprises the following components in percentage by weight: 6-15 percent of base oil or oiliness agent, 2-5 percent of nonionic surfactant, 5-10 percent of anionic surfactant, 5-8 percent of mixed alkylol amine, 10-15 percent of antirust agent, 0.08-0.1 percent of copper alloy corrosion inhibitor, 0-0.5 percent of ethylenediamine tetraacetic acid tetrasodium salt, 0.1-0.2 percent of antifoaming agent and the balance of water. The micro-emulsified water-soluble cutting fluid prepared by the invention is high in cooling property, antirust property and hard water resistance and hardly deteriorates or stinks, the product can inhibit fungi, bacteria and moulds very well without adding any special bactericide, the service life of the product is prolonged, and harm of the bactericide to skin irritation is avoided. The cutting fluid is reasonable in formula, multiple surfactants and aids are utilized, the provided cutting fluid is diluted with water according to a general ratio of 1:20 before being used, the antirust time of a single product exceeds 180 hours, the use of the product is not influenced even if the tank is not replaced within a year according to customer response, the manpower and material resources needed in the process of replacing the tank are saved, and the cost is saved.
Owner:无锡库帕油品有限公司

Preparation method of long-acting water replacement type hard membrane corrosion inhibitor for aircrafts

The invention relates to a long-acting water replacement type hard membrane corrosion inhibitor for aircrafts, and a preparation method thereof. The long-acting water replacement type hard membrane corrosion inhibitor is characterized by comprising the following raw materials by weight: 20-30 parts of a film forming agent, 30-40 parts of base oil, 1-10 parts of a corrosion inhibition additive, 5-10 parts of a dewatering additive, 1-5 parts of an antioxidant, 1-5 parts of a plasticizing agent, 1-5 parts of an emulsifier, 0.1-0.5 part of a color adjusting agent, and 5-10 parts of an auxiliary solvent. The prepared long-acting water replacement type hard membrane corrosion inhibitor has the following advantages that: the corrosion inhibitor has functions of strong rust resistance, long durability, good salt spray resistance, good dampness heat resistance and the like of the general corrosion inhibitor, further has characteristics of high flash point and low weight gain, meets aircraft flying requirements, has the strong permeability so as to easily penetrate and immerse into the overlapping and riveted structure of the aircraft, has the strong water replacement performance so as to replace the fine liquid droplet in the structural micropore, and concurrently provides corrosion protection functions for a variety of metals.
Owner:CHINA SPECIAL TYPE FLIER RES INST

Flux core powder for manufacturing seamless self-shielded welding wire

The invention relates to flux core powder for manufacturing a seamless self-shielded welding wire. The skin of the seamless self-shielded welding wire adopts a mild steel strip, and the flux core powder is synchronously added to the mild steel strip on line. 100 parts of flux core powder comprises the ingredients: 35-50 parts of barium lithium fluoride, 3-5 parts of magnesium fluoride, 0-4 parts of sodium fluoride, 1-3 parts of calcium fluoride, 4-12 parts of iron oxide red, 1-3 parts of rare earth fluoride, 4-8 parts of metal manganese, 10-18 parts of aluminium magnesium alloy, 6-10 parts of metal nickel, 0.5-2 parts of metal zirconium, and the balance of iron powder. All the materials are mixed and stirred uniformly according to a customary method, so that the flux core powder is obtained; the mild steel strip is curled to form a linear seamed cylinder by roller molding, and the linear seamed cylinder wraps the flux core powder; the linear seamed cylinder is manufactured into a semi-finished product seamless self-shielded welding wire by using high-frequency induction or contact bond; the semi-finished product seamless self-shielded welding wire is subjected to annealing and reducing, and is subjected to copper plating, and then the seamless self-shielded welding wire is prepared. In order to prevent the flux core power from absorbing moisture, the skin can be subjected to copper plating, and thus, the rust resistance of the seamless self-shielded welding wire is improved.
Owner:725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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