摘要:
Disclosed herein is a first composition comprising a trivalent chromium cation and an aqueous carrier. Also disclosed herein is a second composition comprising a permanganate anion and an aqueous carrier. Also disclosed herein is a system for treating a metal substrate comprising a first composition comprising a trivalent chromium cation and an aqueous carrier and optionally a second composition comprising a permanganate anion and an aqueous carrier. Also disclosed herein is a method of treating a metal substrate comprising contacting at least a portion of the substrate surface with a first composition comprising a trivalent chromium cation and an aqueous carrier and optionally contacting at least a portion of the substrate surface with a second composition comprising a permanganate anion and an aqueous carrier.
摘要:
A warewashing composition includes a cleaning agent having a detersive amount of a surfactant, an alkaline source in an amount effective to provide a use composition having a pH of at least about 8 when the use composition is measured at a solids concentration of about 0.5 wt%, and a corrosion inhibitor in an amount sufficient for reducing corrosion of glass when the warewashing composition is combined with water of dilution at a dilution ratio of at least about 20:1 water of dilution to detergent composition to form a use composition. The corrosion inhibitor includes a salt of calcium, magnesium, or a mixture of calcium and magnesium. The salt has a water solubility of less than about 0.5 wt% in water at about 20°C and atmospheric pressure so that the salt precipitates to form a protective layer on a substrate in contact with the use composition.
摘要:
Die Erfindung betrifft ein Aluminiumband für lithographische Druckplattenträger bestehend aus einer Aluminiumlegierung, ein Verfahren zur Herstellung eines Aluminiumbandes für lithographische Druckplattenträger sowie einen Druckplattenträger. Die Aufgabe, ein Aluminiumband für lithographische Druckplattenträger zur Verfügung zu stellen, aus welchem Druckplattenträger mit einer verbesserten Aufraubarkeit und gleichzeitig verbesserten mechanischen Eigenschaften, insbesondere nach einem Einbrennvorgang, hergestellt werden können, wird dadurch gelöst, dass ein Aluminiumband für lithographischen Druckplattenträger mit einer Aluminiumlegierung die folgende Anteile an Legierungsbestandteilen in Gew.-% aufweist: 0,05 % ≤ Mg ≤ 0,3 % , 0,008% ≤ Mn ≤ 0,3 %, 0,4 % ≤ Fe ≤ 1 %, 0,05 % ≤ Si ≤ 0,5 %, Cu ≤ 0, 04 %, Ti ≤ 0,04 %, unvermeidbare Verunreinigungen einzeln max . 0,01 %, in Summe max. 0,05 % und Rest Al vorgeschlagen wird.
摘要:
A method of cleaning tantalum-containing deposits from a surface of a process chamber component includes immersing the surface of the component in a cleaning solution having a ration of HF to HNO3 of from about 1:8 to about 1:30 by weight. In another version, the cleaning solution has a ration of KOH to H2O2 of from about 6:1 to about 10:1 by moles. In yet another version suitable for cleaning copper surfaces, the cleaning solution includes HF and an oxidizing agent in a molar ratio of HF to the oxidizing agent of at least about 6:1. The tantalum-containing deposits can be removed from the surface substantially without eroding the surface.
摘要翻译:从处理室组件的表面清洗含钽沉积物的方法包括将组分的表面浸入HF含量为约1:8至约1:30的HNO 3清洗溶液中。 在另一个版本中,清洁溶液的KOH至H 2 O 2的比例为约6:1至约10:1摩尔。 在适于清洁铜表面的另一种方案中,清洗溶液包括HF和氧化剂的摩尔比为至少约6:1的HF和氧化剂。 可以从表面去除含钽沉积物,而不会侵蚀表面。
摘要:
A solution capable of removing adherent organic material from the surface of a solid substrate at room temperature is disclosed. The solution includes a first solvent, preferably water, having dissolved therein: up to 2% alkali metal silicates, a source of alkalinity that is substantially free of alkali metal hydroxide ions, at least one organic solvent, and an amount of hydrotrope effective to render the organic solvent or solvents soluble in the solution, an amino alcohol may be included, at least one surfactant, and a corrosion inhibitor may be included. The solution should have an alkaline pH less than about 12. The solution is used to remove the adherent organic material by soaking the object having such material thereon in such a solution, preferably at room temperature.
摘要:
A method for treating a magnesium-based metal formed article characterized as comprising immersing the magnesium-based metal formed article in a treating solution containing sodium metasilicate, sodium carbonate, sodium phosphate and sodium hydroxide as main components to thereby perform cleaning and etching. The method enables performing the cleaning and etching of the metal at the same time and is free from the generation of hazardous substances during treating. It results in the increase of the adhesiveness of the metal with a coating film and thus in the improvement of the resistance of the metal to corrosion and rust to carry out the degreasing, cleaning and etching at the same time.
摘要:
A method for use in the manufacture of a microelectronic device is set forth. The method includes (10) a first step in which a workpiece including exposed aluminum metallized surfaces and residues is provided. The workpiece, including the exposed aluminum metallized surfaces, is then treated with an alkaline, water-based solution containing one or more components that form an aluminosilicate on the exposed aluminum metallized surfaces. The solution (20) reacts with the residues and assists in removing them from the workpiece. Preferably, the solution is comprised of DI water, and ammonium hydroxide based component, such as TMAH, silicic acid, and aluminum hydroxide.