足球比分007

Metal Materials; Metallurgy; Casting; Grinding; Manufacturing and Processing of Polishing Equipment, Application Technology
  • Method for producing coated cutting tool, and coated cutting tool and process
    The invention relates to a method for producing a coated cutting tool, said tool having a coating comprising a metal nitride and an aluminum-containing oxide. The invention also relates to a coated cutting tool. It is always desirable to improve cutting tools for metalworking so that they are more durable, withstanding higher cutting speeds and / or other increasingly demanding cutting operations. Generally, cutting tools used for metalworking include hard substrate materials such as hard alloys, which have a generally ...
  • Method for selective PEALD of oxide on dielectric
    BACKGROUND The present disclosure relates generally to the field of semiconductor device manufacturing, and more particularly, to selective plasma enhanced atomic layer deposition of oxide films. In the semiconductor industry, the demand for selective processes is increasing. For example, it may be desirable to perform film growth on one surface, rather than on a second different surface. These two different surfaces may include different materials, such as metals and dielectrics. Good selective process reduces process steps ...
  • The invention relates to a coated cutting tool, which comprises a main body of cemented carbide, cermet, hss or ceramic, the main body has a pvd coating, and the coating comprises a metal nitride and an aluminum-containing oxide. The invention also relates to its production method and its use for machining iso-s materials. There has been a desire to improve cutting tools for metal machining to make them more durable, withstand higher cutting speeds and / or other increasingly ...
  • High-strength steel plate and manufacturing method and process thereof
    The present invention relates to a high-strength steel sheet that can be used in various applications including automotive parts. In recent years, steel sheets suitable for automobile parts and the like have been required to be thinner in order to improve fuel efficiency, and in order to reduce the thickness of the steel sheet and ensure the strength of the part, high strength of the steel sheet is required. Patent Document 1 discloses a high-strength steel sheet having a tensile strength of 980 mpa to 1180 mpa and exhibiting good deep-drawing characteristics ...
  • Manufacturing method of high-strength steel member
    The invention relates to a high-strength steel member. Among steel members used in machinery, automobiles, bridges, and buildings, high-strength steel members are particularly required, for example, after quenching-tempering the chrome steel or chrome molybdenum steel specified in jism4104 and jism4105. In addition, there are also steel members, such as gears, which are subjected to carburizing and then quenched to obtain high-strength steel members. During quenching, the steel member is heated to a high temperature to make the steel member into an austenite phase ...
  • Manufacturing method of steel and parts
    The present invention relates to a steel having improved hardenability, toughness, surface origin peel life, and bending fatigue strength, and a component manufactured using such a steel. Mechanical components for bearings and other automotive parts, constant velocity universal joints, and hub units for automotive parts require repeated rolling fatigue due to high surface pressure. In recent years, for these components, for example, fuel economy of automobiles has been required. With the improvement of performance and the high output of the engine, light weight, small ...
  • The present invention relates to a thick steel plate, and in particular, to a ctod test in which any of cghaz and sc / ichaz boundaries is a notch position, and it shows excellent characteristics, and can be applied to ships, marine structures, pipelines, pressure vessels, etc Thick steel plate with excellent ctod characteristics of multilayer welded joints. Moreover, this invention relates to the manufacturing method of the said thick steel plate. So far, Charpy tests have been mainly used in the toughness evaluation of steel. ...
  • Oriented electromagnetic steel plate and manufacturing method and process thereof
    The present invention relates to a grain-oriented electrical steel sheet and a method for manufacturing the same, and more particularly to a grain-oriented electrical steel sheet having excellent iron loss characteristics and a method for manufacturing the same. Electromagnetic steel sheets are widely used soft magnetic materials such as core materials for transformers and generators, and there are non-oriented electromagnetic steel sheets and oriented electromagnetic steel sheets. Especially the oriented electromagnetic steel sheet, by making the crystal orientation high to the {110} <001> square called the Goss orientation ...
  • Manufacturing method of high nitrogen, multi-main element, high entropy and corrosion resistance alloy
    BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to corrosion-resistant austenitic steel alloys, and in particular to multi-main element, high-entropy, corrosion-resistant alloys including nitrogen. Description of the Related Art It is known that alloying elements such as chromium (cr), molybdenum (mo), and nitrogen (n) improve the corrosion resistance of steel alloys, particularly resistance to localized corrosion in chloride-containing environments. The degree of corrosion resistance can be predicted by the pitting resistance equivalent (pren). Determine the pren of the alloy ...
  • Cemented carbide, cutting tool including the same, method and process for manufacturing cemented carbide
    The present disclosure relates to a cemented carbide, a cutting tool including the same, and a method for manufacturing the cemented carbide. This application claims priority from Japanese Patent Application No. 2018-085641, filed on April 26, 2018, the entire contents of which are incorporated herein by reference. As a hard material containing ti, a cemented carbide and a cermet are known. Because this hard material has excellent abrasion resistance, because ...
  • Electrode material, electrode for spark plug, and manufacturing method of spark plug
    The present invention relates to an electrode material, an electrode for a spark plug, and a spark plug. This application claims priority from Japanese Patent Application No. 2017-100387 filed on May 19, 2017, and the entire contents of this Japanese Patent Application are incorporated herein by reference. A spark plug is an example of an engine part of an automobile or the like. Patent Document 1 discloses an electrode material composed of a nickel alloy having a specific composition as being suitable for a spark plug ...
  • Carbothermal direct reduction of chromite with catalyst for production of ferrochrome alloy
    The present invention relates to pyrometallurgical treatment of chromite ores or concentrates for the production of chromite alloys. Ferrochrome is an important alloy used in stainless steel production. In Canada, the discovery of a large number of chromite deposits in the volcanic belt of northern Ontario has increased interest in the exploration of these deposits and their subsequent mining and processing to produce ferrochrome. At present, most chromite ore or concentrate is added by smelting with a reducing agent in an electric arc furnace ...
  • Method for manufacturing steel belt for tool, steel belt for tool and process
    The invention relates to a method for manufacturing a steel belt for a cutter and a steel belt for a cutter. The steel belt for cutting tools used in cutting tools such as knives uses martensite with high hardness, excellent abrasion resistance and corrosion resistance, including c1.0% or less and 12.0% to 14.0% by mass (% martensite) is stainless steel. The martensitic stainless steel strip can usually be added by performing cold rolling, softening annealing on the hot-rolled steel strip after hot rolling ...
  • Preparation method and process of bakelite substrate grinding wheel drop method
    The invention relates to a bakelite substrate grinding wheel pressing method for forming a mold, which is used for preparing the bakelite substrate grinding wheel by the method of falling. At present, most of the existing bakelite matrix wheels are formed by semi-hot pressing the abrasive layer, then cooling the mold and exiting the mold, then painting the resin liquid on the contact surface between the abrasive layer and the bakelite substrate, and finally hot pressing the bakelite substrate material. However, this method has many forming steps, and the abrasive layer needs to be cooled before applying the resin liquid, although it can ensure that the delamination is obvious ...
  • Manufacturing method for balancing device for manufacturing grinding wheel piece
    The present invention relates to grinding wheel processing, and in particular, to a balancing device for making grinding wheel pieces. Grinding wheels are also called consolidated abrasives. The abrasive wheels are used to consolidate ordinary abrasives into a certain shape (mostly circular, with a through hole in the center), and have a certain strength. It is generally composed of abrasives, binders and pores. These three parts are often referred to as the three elements of a consolidated abrasive. According to the different classification of binding agents, common are ceramic (bonding) grinding wheels ...
  • Manufacturing method of impeller, impeller assembly and waxing machine
    The invention relates to the field of grinding and polishing instruments, in particular to an impeller, an impeller assembly and a waxing machine. In the prior art, an impeller is often used to polish and grind a workpiece. During polishing and grinding, wax water is often added between the impeller and the workpiece. The impeller design in the prior art is unreasonable. During the impeller rotation, wax water is often thrown out. Wasting wax water is not to mention, the processing efficiency is greatly reduced, and the processing quality is also greatly due to the lack of wax water ...
  • Concavo-convex abrasive cloth and preparation method and process thereof
    The invention belongs to the field of coated abrasives, and more particularly, relates to a concave-convex abrasive cloth and a preparation method thereof. When using abrasive cloth or sandpaper to grind or polish an object, it is usually to move the abrasive cloth or sandpaper back and forth on the work surface. Because the object to be polished or polished usually has more than a flat structure, the texture of the abrasive cloth or sandpaper should be relatively soft. In the prior art, the formula of the primer layer, the adhesive layer or other adhesives is often changed to make the abrasive cloth ...
  • Manufacturing method of polishing wheel
    The invention belongs to an internal grinding auxiliary tool, and particularly relates to a middle-polishing multifunctional grinding wheel. In some grinding auxiliary tools such as cnc machines, grinding wheels are needed for grinding in the machine, and some grinding supplies need to be set on the grinding wheels. However, the current consumables are difficult to fall off and difficult to replace. At present, consumables can only be locked and fixed on the grinding wheel by manually tightening screws. This fixing method has the problem that the grinding wheel teeth are easy to slip and the consumables are not locked. problem. hair...
  • The invention relates to the field of edging wheels, and more particularly, to a metal-resin composite bond diamond edging wheel and a manufacturing method thereof. Diamond grinding wheel, as a special tool for ceramic tile edging and deep processing, plays the role of edging and cutting. In the past ten years, with the popularization and application of high-volume ceramic tile grinding and polishing production lines, the line speed of ceramic grinding and polishing lines is getting faster and faster, which puts forward higher and higher technological requirements for ceramic tile grinding and deep processing. Against the background of high-speed production and fast line speed, ...
  • The invention provides a method for preparing a metal bonded diamond product, which belongs to the preparation of diamond tools. Metal-bonded diamond products have higher strength, hardness and toughness, and have better grip on diamond abrasive particles. Whether the excellent properties of the diamond abrasive particles in the metal bonded diamond sintered product can be brought into full play, the holding power of the bonding agent and the strength and hardness of the bonding agent are crucial factors. The quality of the metal bond depends on ...
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Technical classification