摘要:
PURPOSE:To obtain a base sheet for surface treatment having an excellent surface characteristic without scratch flaws, etc. by interposing a lubricating agent having the specified coefft. of friction and oil film strength between rolling rolls and the base sheet for surface treatment and subjecting the base sheet to wet temper rolling. CONSTITUTION:The lubricating agent having 0.20-0.45 coefft. of friction and >=400kg/mm oil film strength (Hertz's pressure) is selected in the stage of subjecting the base sheet for surface treatment having
摘要:
PURPOSE: To obtain a steel sheet useful as a canning material or the like excellent in a rust-preventing property and direct coatability, which can be used for both temper rolling and two-pass cold rolling, by coating said steel sheet with the proper amount of the oily composition consisting of specified substance permitted under FDA. CONSTITUTION: Among substances permitted as the components of an oily composition under FDA, 10W60wt% a proper one or more of petroleum wax, synthetic wax and lanoline regulated under Paragraph No. 178-3910 of FDA, 5W 40wt% a fatty acid under the same No., 5W30wt% triethanolamine under the same No. and 10W40wt% a mineral oil under the same No. are prepared. In addition, 1W20wt% polyethylene glycol monostearate as a nonionic surfactant or a nonionic surfactant regulated under Paragraph No. 178-3400 of FDA is properly added. An oily composition obtd. by mixing these substances with an aqueous medium and emulsifying them is applied onto a steel sheet by a proper means such as temper rolling or coating. COPYRIGHT: (C)1984,JPO&Japio
摘要:
PURPOSE: A lubricant for drawn and ironed cans, consisting of a water-soluble or water-dispersible composition containing an ester of a polyalkylene polyol with a fatty acid and a specific polyalkylene polyol at a specified ratio, and usable for particularly tinned steel sheets. CONSTITUTION: A lubricant for drawn and ironed cans containing (A) an ester of a polyalkylene polyol with a fatty acid and (B) a polyalkylene polyol having 200W20,000 number-average molecular weight within (5:95)W(95:5), preferably (20:80)W(80:20) weight ratio range between the components (A) and (B). EFFECT: Improved lubricity, stripping properties and water detergency in working. COPYRIGHT: (C)1984,JPO&Japio
摘要:
PURPOSE: To provide titled composition of heat-deterioration resistance, short- term corrosion-proofness, and lubricity, also capable of various paintings without degreasing in afterprocess, comprising each specific proportion of wax, corrosion-proof additive, oiliness improver, emulsifier, and water. CONSTITUTION: The objective composition consisting of (A) 0.1W60wt% of a natural or synthetic wax, (B) 0.1W50wt% of a corrosion-proof additive [e.g., alkaline (alkaline earth) metal salt of petroleum sulfonate with a molecular weight of 300W800], (C) 0.1W30wt% of an oiliness improver (e.g., 4W36C alkyl monocarboxylic acid), (D) 0.1W20wt% of an emulsifier (e.g., 4W36C alkyl monocarboxylic acid monoethanol amine salt), and (E) the rest of ingredients including regulator (e.g., stabilizer such as butyl cellosolve), purified hydrocarbon, or water, with the amount of the ingredients (A), (B), (C), plus (D) ranging from 0.4 to 85wt%. COPYRIGHT: (C)1984,JPO&Japio
摘要:
PURPOSE:To prevent a flaw on the outside surface of a tube stock and a drop of a service life of a roller by executing the rolling, while supplying a seizure preventing agent whose main component is a water soluble borate compound and which does not contain a film forming agent to the surface of a guide shoe for abutting on a rolled stock and/or the surface of a rolling roller. CONSTITUTION:A seamless steel tube is manufactured by a skew rolling mill such as a piercer mill 3, etc., and/or a multi-stage rolling mill having a caliber roller. In this case, at the time of piercing, drawing and rolling, hot rolling is executed, while supplying a seizure preventing agent whose main component is a water soluble borate compound and which does not contain a film forming agent to a guide shoe 3D for abutting a rolled stock 4 or the surface of a rolling roller. The seizure preventing agent to be used contains 0.-30weight% water soluble borate compound. In such a way, the seamless steel tube having a good quality can be manufactured with high efficiency.
摘要:
PURPOSE:To prevent the seizure between a guide shoe and a rolled stock irrespective of a material of the rolled stock by supplying an seizure preventing agent containing a water soluble borate compound and a film forming agent to the surface of the guide shoe for abutting on the rolled stock and rolling its stock, while forming a film. CONSTITUTION:By a skew rolling mill provided with a disk roller type guide shoe 11, piercing of a seamless steel pipe, thickness reduction, drawing and rolling are executed. In this case, to the surface of the guide shoe 11 for abutting on a rolled stock 10, a seizure preventing agent whoce main components are a water soluble borate compound and a film forming agent is supplied from an injection nozzle 5. While forming a film on the surface of the guide shoe by said seizure preventing agent, the stock is rolled. In such a way, the seamless steel tube having a good quality can be produced with high efficiency.
摘要:
PURPOSE:To easily measure the activity concn. of a radical trapper, by quantiting the quantities of the same radical species before and after the forcible oxidation of a specimen to be measured by electron spin resonance (ESR) and obtaining the difference therebetween. CONSTITUTION:Liquid phase autoxidation reaction is radical chain reaction wherein a peroxide radical generated by the oxidation of the hydrocarbon component of oil is percipitated. A radical trapper, for example, an antioxidizer (AO) catches a radical generated during reaction as shown hereinbelow and comes to a radical (AO.) itself. The radical (AO.) generated in said antioxidizer forms a resonance stabilizing state, changes to a separate decomposed substance (AX) or makes chain reaction difficult to generate. In the case of an amine type antioxidizer, NO. achieves large function as an intermediate. This (AO.), especially (NO.) radial is quantitatively measured by ESR and, subsequently, the specimen thereof is forcibly oxidized using an oxidizing agent to again quantity AO., especially NO. and the increase quantity of AO., especially NO. is measured and detected as the activity concn. of the antioxidizer.
摘要:
PURPOSE:An oil composition for temper-rolling that contains a specific proportion of wax, which is approved by FDA, fatty acids, triethanolamine, mineral oil and nonionic surface active agents, thus being dispersible in an aqueous medium and showing high rusting resistance and good coating properties. CONSTITUTION:The objective oil composition is composed of (A) 10-60wt% of at least one selected from the group consisting of petroleum wax, synthetic wax, and lanolin, which are specified by FDA paragraphs No.178-3910, (B) 5- 40% of fatty acids, (C) 5-30% of triethanolamine and (D) 10-40% of mineral oil, additionally, (E) 1-20% of polyethylene glycol monostearate and/or a nonionic surfactant specified by FDA paragraph No.178-3400. The resultant composition is used after it is emulsified in water containing 0.1-10% of alcohols or glycols.