When mechanical parts of mobile or industrial equipment fail. Evidence of failure and failed mechanical components are often damaged.
The original evidence of a defect is deformed...plusWhen mechanical parts of mobile or industrial equipment fail. Evidence of failure and failed mechanical components are often damaged.
The original evidence of a defect is deformed by the actual defect and cannot be distinguished from other evidence. The destruction of the initial failure evidence usually led researchers to blame the lubricant for failures caused by another mechanism.
in contrast. Malfunctions due to incorrect use of lubricants or poor lubrication are caused by other factors. In many potential causal relationships, evidence about the cause of failure loses evidence about the outcome.
The lack of good evidence can lead to costly wrong decisions about whether to make a specific failure of a mobile or industrial device. In most cases, it is not even possible to determine whether the way the failure occurred was avoided or accidental and whether it should be accepted.
It is relatively common that once harmless and unnecessary preventive maintenance procedures (PMs) are introduced into maintenance... Moins
The production of China Mechanical Parts is a material forming technology, and it is a new metal cold deformation processing method that has appeared in recent years. It is one of...plusThe production of China Mechanical Parts is a material forming technology, and it is a new metal cold deformation processing method that has appeared in recent years. It is one of the main methods of metal plastic processing. In the production of mechanical parts in China, people use the power of traditional or special stamping equipment to press, use pressure to deform the material, and then use the metal plate in the mold to deform the part with a specific size. Therefore, what are the issues that Chinese machinery parts manufacturers need to pay attention to during production? Let's introduce them to professional manufacturers!
In the production of mechanical parts in China, it should be noted that engineering equipment such as presses or molds should be used under normal conditions of use. This effectively prevents the steel strip from being transported along the correct location or our pre-determined gap. We, make sure all parts are fastened. When manufacturing machine parts in China, do not change the... Moins
Following our article on the importance of technical specifications when purchasing mechanical parts in China, we post here a non-exhaustive list of norms defining several levels...plusFollowing our article on the importance of technical specifications when purchasing mechanical parts in China, we post here a non-exhaustive list of norms defining several levels of acceptance according to different manufacturing processes.We also include the important to specify for cases in which, according to our experience, it is critical to mention a specific standard or detailed requirement in order to guarantee that the China Mechanical Parts produced reach your requirement targeting.Casting: Lost wax casting / Investement casting / Sand castingImportant to specify: Acceptance level for internal defects of casting parts & Acceptance level for surface defects of casting partsMaterial NF-EN A32-054 -> Alloy cast steel for general useInternal quality (NDT : non-destructive test) NF-EN-12681 -> X-Ray: internal soundness NF-EN-12680 -> Ultrasonic test: internal defects & micro-structureSurface quality (NDT: non-destructive test) NF-EN-12454 -> Visual control sand casting ... Moins
The main dimensions of China Mechanical Parts often need to be determined by theoretical calculations. The theoretical design calculation is based on the structural...plusThe main dimensions of China Mechanical Parts often need to be determined by theoretical calculations. The theoretical design calculation is based on the structural characteristics and working conditions of the part, and it is rationally simplified into a certain physical model. The theory, theoretical mechanics, fluid mechanics, tribology, thermodynamics, mechanical vibration and other theories are used or the design is derived using these theories. Formulas, experimental data to design. Theoretical design calculations can be divided into design calculations and calibration calculations.1. Design calculation. The relevant main dimensions of the part are directly obtained according to the design formula.2. Check calculation. The dimensions of each part of the part are known, and the design formula is used to check whether it meets the relevant design calculation criteria.In order to make the results of the design calculation more realistic, we should refer to the empirical relationships and statistical data... Moins
It is necessary to consider that the materials used can be easily manufactured from blank to finished product. For example, a part with a complicated structure and a large size is...plusIt is necessary to consider that the materials used can be easily manufactured from blank to finished product. For example, a part with a complicated structure and a large size is difficult to forge, and it can be cast or welded, and the material must have good casting properties or welding properties.Depending on the process chosen, the material's processing possibilities for the process are to be considered. For casting, the liquidity of the material, the possibility of shrinkage cavities and segregation are considered; for welding, the weldability of the material and the tendency to crack are considered; for forging, the extensibility, hot brittleness and Deformability, etc.for parts requiring heat treatment, consider the hardenability of the material, the tendency of quenching deformation, etc.; for the parts to be machined, consider the hardness, machinability, degree of cold work and after cutting. Surface roughness that can be achieved, etc.3. Economic requirements(1) The relative price of the material... Moins
Mechanical parts are non-detachable basic units that make up the machine, such as bolts, screws, keys, belts, gears, shafts, springs, pins, and so on. China Mechanical Parts are...plusMechanical parts are non-detachable basic units that make up the machine, such as bolts, screws, keys, belts, gears, shafts, springs, pins, and so on. China Mechanical Parts are divided into general parts and special parts. A general-purpose part is a part that can be widely used in various machines, and a dedicated part is a part that can be used only in a specific type of machine.Common materials for mechanical partsMechanical parts are made of metallic materials, non-metallic materials and composite materials.Metal materials are classified into ferrous materials and non-ferrous materials. The ferrous materials include various steels, cast steels and cast irons, which have good mechanical properties (such as strength, ductility, toughness, etc.), are relatively inexpensive and readily available, and can meet a variety of performance and application requirements. Among all kinds of ferrous metals, alloy steels are often used to make important parts because of their excellent properties. Non-ferrous metal... Moins
Failure of mechanical parts means that parts are partially or completely lost in design during use. The part is completely destroyed and cannot continue to work; or the part has...plusFailure of mechanical parts means that parts are partially or completely lost in design during use. The part is completely destroyed and cannot continue to work; or the part has been seriously damaged, and if it continues to work, it will lose its safety; or if it can work safely, the loss of design accuracy will be invalid. In order to prevent the failure of parts, it is necessary to carry out failure analysis on the parts, that is, by judging the failure form of the parts, determining the failure mechanism and causes of the parts, selecting materials, determining a reasonable processing route, and proposing measures to prevent failure.1. China Mechanical Parts failure formThe common failure modes of mechanical parts can be divided into three types: excessive deformation failure, fracture failure and surface damage failure.Titanium Machinery is the main product of the company with rotary thimble, screw screw, machine tool spindle, shaft machining, CNC lathe machining, shank shank and collet post; Titanium... Moins
Standard Mechanical ComponentsCommands: ComponentsPanelOpenBricsCAD Mechanical contains a library of 30,000 standard mechanical components of 800+ different types. They are...plusStandard Mechanical ComponentsCommands: ComponentsPanelOpenBricsCAD Mechanical contains a library of 30,000 standard mechanical components of 800+ different types. They are available in Components panel, and can be inserted into your assembly with drag'n'drop. You can adjust the parameters by using the Properties panel, which Lists parameters of a component being inserted or after insertion by using Mechanical Browser.Components panel is configured in the Mechanical profile to contain three categories: Standard Parts Holes Sheet MetalStandard Parts (Hardware)Standard Parts category contains parametric standard hardware such as bolts, nuts, bearings, gears, and etc.The content of Standard China Mechanical Parts category is further structured by type, subtype, and standard (example: Standard Parts / BOLT / HEX HEAD / ISO / ISO 4017).Sheet Metal Form FeaturesSheet Metal category contains parametric library of sheet metal form features such as bridges, embosses, and etc.To place a standard... Moins