5 results about "Metal working fluid" patented technology

The application relates to the technical field of fine chemicals, in particular to a biomimetic amphoteric surfactant as well as a preparation method and application thereof; the preparation method of the biomimetic amphoteric surfactant comprises the following steps: reacting a fatty amine polyoxyethylene ether with a halogenated hydrocarbon to obtain a benzyl quaternary ammonium salt intermediate; cooling the benzyl quaternary ammonium salt intermediate, then adding phosphorus pentoxide to react; after the addition is completed, water is added, the reaction is continuously carried out, and the biomimetic amphoteric surfactant is obtained; the biomimetic amphoteric surfactant simultaneously integrates three characteristics of phosphate anion, polyether non-ion and benzyl quaternary ammonium salt cation, effectively solves the industry problem that traditional phosphates and cationic settling agents are incompatible, and is applied to metal processing fluid, can realize stable compounding with cationic settling agents while retaining excellent extreme pressure lubricity and hard water resistance, and can replace traditional extreme pressure agents such as environmentally-unfriendly chlorinated paraffin.

This invention discloses a semi-synthetic metalworking fluid with rust-preventive properties and its preparation method. The fluid comprises, by mass fraction of raw materials: 25-30 parts base oil, 3-5 parts composite corrosion inhibitor, 0.1-0.3 parts non-ferrous metal corrosion inhibitor, 12-15 parts pH stabilizer, 8-11 parts main emulsifier, 3-5 parts auxiliary emulsifier, 0.8-1.5 parts calcium soap dispersant, 0.8-1.0 parts coupling agent, 2.5-3.5 parts bactericide, and 27.7-44.8 parts water. This invention utilizes a composite corrosion inhibitor of dodecyl diacid (DDDA) and triazine polycarboxylic acid derivatives, compounded in a specific ratio, to construct a dual protective mechanism of "microscopic hydrophobic adsorption" and "macroscopic chemical passivation" on the metal surface. This synergistic effect greatly enhances the density and adhesion of the protective film.

This invention relates to the field of metalworking fluid technology, and more particularly to a cutting fluid containing nano-polytetrafluoroethylene (PTFE), its preparation method, and its application. This invention aims to solve the problems of insufficient lubrication performance, high surface roughness, rapid tool wear, and frequent grinding wheel repair in existing cutting fluids. To this end, this invention provides a cutting fluid comprising, by mass percentage, nano-polytetrafluoroethylene, an anti-wear agent, a rust inhibitor, a pH adjuster, a bactericide, a defoamer, and an aqueous medium, wherein the nano-polytetrafluoroethylene is uniformly dispersed in the liquid. Through a rational setting of the component proportions and a preparation process including step-by-step addition, stirring, pH adjustment, and filtration, the cutting fluid achieves low friction, wear resistance, rust prevention, corrosion prevention, and machining stability. When using the cutting fluid of this invention to machine aluminum, carbon steel, and stainless steel, it can significantly reduce workpiece surface roughness, extend tool life, reduce the number of grinding wheel repairs, and simultaneously ensure machining continuity and fluid stability.

The present application belongs to the technical field of metal processing fluid, and discloses a production method of an environmentally-friendly long-acting clean line cutting fluid. The method uses waste edible oil as raw material, and after pretreatment, branched fatty acids are prepared through a deoxygenation-cracking-isomerization coupling reaction and a carbonylation step, and then high-stability bio-ester base oil is generated by directional esterification of the branched fatty acids with neopentyl polyol without beta-hydrogen; intelligent slow-release antioxidant microcapsules, compounded surfactants and functional additives are compounded to form a water-based microemulsion. Through molecular structure reconstruction, intelligent material integration and green process coupling, the present application solves the industry pain points of poor long-term stability, insufficient cleaning performance and high environmental risk of plant oil-based cutting fluid, and the obtained cutting fluid has excellent oxidation stability, strong hard water resistance, good cleaning performance, long-term stable pH, high biodegradation rate, can be continuously used for 180 days without replacement, and has environmental friendliness and high performance.

The application belongs to the technical field of metal processing fluid, and discloses a low-carbon biodegradable metal processing fluid, which comprises the following components in percentage by mass: 4-6% of isopropyl alcohol amine, 1-3% of nano silicon corrosion inhibitor, 2-5% of ternary carboxylic acid rust inhibitor, 0.5-2.5% of benzotriazole, 5-10% of 182 self-emulsifying ester, 4-6% of castor oil acid, 40-60% of DOTP, 4-8% of gelberol, 2-4% of ether carboxylic acid complexing agent, 2-5% of cashew phenol polyoxyethylene ether 5EO, 4-8% of cashew phenol polyoxyethylene ether 2EO, 0.4-0.6% of potassium hydroxide, and the balance of water. The low-carbon biodegradable metal processing fluid does not contain harmful substances, has excellent environmental protection performance, has good lubricity, and can be applied to the processing of metals such as copper, aluminum and its alloys, magnesium and its alloys, and has a good application prospect.