Matériaux hebdomadaire

Blog sur la science des matériaux et l'ingénierie

Nouvelles informations sur l'industrie des matériaux, la science et la technologie, ainsi que connaissances et informations relatives à la technologie de production et d'application des matériaux et aux essais de matériaux

The Difference between Few Common Stainless Steels’ Properties and Composition

stainless steel is used for corrosive environments. By adding some amounts of elements, such as nickel and chromium, outstanding corrosion resistance are obtained. To correctly select the grade right for the project. We share this blog about few common grades of stainless steel to get you preliminarily understand them.  Table of Contents Classification of all common STSs by their componentDifferentiation of Stainless Steel 201 and 304What is 316 stainless steel?What is 430 stainless steel?What is 439 stainless steel? Classification of all common STSs by their component According to the composition, it can be divided into Cr system (SUS 400), Cr-Ni system (SUS … Lire la suite

What are Super Stainless Steels?

Super stainless steels may be not a common material to you, which are referred to a special type added with a higher content of Nickel, chromium, molybdenum than conventional stainless steel. This blog will help you to get knowledge of them and determine which one is good for your project. According to their microstructural characteristics, super inox can be divided into super ferritic stainless steel, super austenitic stainless steel, super martensitic stainless steel and super duplex stainless steel. Table of Contents Super austenitic stainless steelSuper ferritic stainless steelSuper Duplex Stainless SteelSuper martensitic stainless steelFunctional stainless steelNitrogen-alloyed stainless steelHigh Clean Stainless … Lire la suite

How do Grinding Parameters Impact on Tungsten Carbide Products?

Hey everybody, a new material weekly on surface grinding of ultra-fine cemented carbides. Reading this probably cost you about 15 minutes Abstract of this article: The grinding experiment of superfine cemented carbide was carried out on a plane grinder with diamond grinding wheel. The grinding surface morphology was observed by scanning electron microscopy and the surface roughness was measured by surface roughness tester. The influence of grinding parameters on the surface roughness of ultra-fine cemented carbide grinding was analyzed. The results show that the grinding surface roughness of superfine cemented carbide increases with the increase of grinding wheel size at the same … Lire la suite

How to Prevent Tungsten Carbide Corrosion

Table of Contents Development Status of Corrosion Resistant Cemented CarbidesClassification of Corrosion Resistant Cemented CarbidesFactors Affecting the Corrosion Resistance of Cemented CarbideCohesive phaseHard phaseTungsten cobalt alloyTungsten carbide alloysTitanium CarbideOther cemented carbides Development Status of Corrosion Resistant Cemented Carbides With the rapid development of industrial technology, people’s demand for materials is getting higher and higher. The materials used should have not only high strength, high hardness but also good corrosion resistance. For example, the chemical industry and machinery require materials to have good chemical stability, strong corrosion-resistance, but also high strength and hardness to withstand the dual effects of chemical corrosion … Lire la suite

Metal Powder Metallurgy in the Fabrication of Medical Instruments

Modern medical appliances are in great demand, and the structure of many medical appliances is also very sophisticated and complex, so a new manufacturing technology is needed to replace the traditional production. Nowadays, metal powder metallurgy can mass produce products with complex shapes in a short period of time, which can meet the manufacturing requirements of medical appliances and become an ideal manufacturing method. Table of Contents Metal powder metallurgy technologyMedical appliances manufactured by metal powder metallurgy technologyOrthodontic bracketSurgical tools Knee implant parts Hearing Aid Sound TubeProspects Metal powder metallurgy technology Metal powder metallurgy is a Near Net Shape Forming … Lire la suite

What Should You Know about Brazing of Carbide Brazed Tools

The main products that need to be used for brazing carbide brazed tools are the bimetallic structure of cutting tools, measuring tools, dies and excavation tools. The characteristic of this bimetallic structure is that its cutting parts are cemented carbide, and the matrix is carbon steel or low alloy steel, usually medium carbon steel. A bimetallic structure can cushion the tremendous stress acting on this kind of workpiece, especially under compressive bending, impact or alternating loads. Most of the carbide brazed tools are welded to the medium carbon steel or low alloy steel matrix. The brazing process is closely related … Lire la suite

5 Main Materials Applied in Cold Stamping Process

Stamping dies work under the impact, vibration, friction, high pressure, tension, bending and torsion loads, and even at higher temperatures (such as cold extrusion). The working conditions are complex and easy to be worn, fatigued, fractured, deformed and other phenomena. Therefore, the requirement for the material of the working parts of the die is higher than that of the ordinary parts. Due to the different working conditions of various stamping dies, the requirements for the materials of working parts of the dies are also different. Table of Contents Requirements for various stamping molds1. for blanking dies2. for Drawing Die Materials3. for … Lire la suite

10 principaux types de roulement

Un roulement est un composant mécanique de précision qui modifie le frottement de roulement entre l'arbre de roulement et le siège d'arbre, réduisant ainsi la perte de frottement. Le roulement est généralement composé d'une bague intérieure, d'une bague extérieure, d'un corps roulant et d'une cage. La bague intérieure est adaptée à l'arbre et tourne avec l'arbre; la bague extérieure sert à coopérer avec le siège de palier pour supporter le corps roulant; L'élément roulant est uniformément réparti entre la bague intérieure et la bague extérieure. Sa forme et sa quantité affectent directement les performances de service… Lire la suite

4 traitements de surface métalliques courants à ce jour

Table des matières Le concept de traitement de surface des métauxClassification des technologies de traitement de surface des métaux Traitements de surface des métaux communsModification de la surface du métalRécoloration de la surface du métalSablage au jet de sable sur une surface métalliqueRétirage de la surface métalliqueRétractage au laser de la surface métalliqueTechnologie d'alliage de surfaces métalliquesRécordement et phosphatation de la surface métallique Surface métallique Le concept de traitement de surface métallique Il fait référence au processus de modification de l'état de surface et des propriétés des pièces et d'optimisation de sa combinaison avec des matériaux de matrice pour répondre aux exigences de performance prédéterminées en utilisant les nouvelles technologies de pointe telles que la physique, la chimie, la métallurgie et la chaleur modernes disciplines de traitement. Classification … Lire la suite

Qu'est-ce que la fonte?

Pour la plupart des hommes travaillant dans l'industrie de l'usinage des métaux, la fonte doit être une sorte de matériau familier. Qu'est-ce que la fonte? Tout d'abord, il s'agit d'une sorte d'alliage de ferro-carbone contenant plus de 2,11% de carbone et de petites quantités de Si, Mn, S et P. Les propriétés mécaniques de la fonte sont inférieures à celles de l'acier moulé. Mais il présente une excellente aptitude au moulage, à l'absorption des chocs, à la résistance à l'usure et à l'usinabilité de la coupe. Le processus de production est simple et le coût est faible. C'est l'un des matériaux métalliques les plus couramment utilisés en ingénierie. Table des matières Classification de… Lire la suite

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