Wat is het tolerantiebereik??
Tolerantie is een aanvaardbare variatielimiet: inclusief fysieke eigenschappen of afmetingen.
In het proces van verwerking van spuitgietmatrijs, de grootte van plastic onderdelen is afhankelijk van veel variabelen, en het wordt niet noodzakelijkerwijs verwerkt tot de juiste maat zoals andere productieprocessen. De factoren die van invloed zijn op de grootteverandering van plastic onderdelen zijn onder meer: materiaal, uitvoering, ontwerp, machine en productieproces.
In de ontwerpfase van de spuitgietmatrijs, onzekerheid van schimmeltolerantie kan leiden tot onjuiste afstemming, product- of functiestoring, production delay and unexpected extra cost.
Bij spuitgietverwerking, the following four aspects will play a key role in getting the appropriate tolerance.
1. Injection mold product design
To control the tolerance of injection mold, the first step is to establish the tolerance range in the design phase. Tolerance ranges are critical to the function of most components. The establishment of tolerance range in the early stage of design will contribute to the manufacturability and repeatability of mold manufacturing. Improving manufacturability and repeatability will maintain quality throughout the life cycle of the program.
Key points of injection mold product design:
Shrinkage can vary according to material selection and product wall thickness. The thicker part may contract at a different rate than the thinner part. Changes in shrinkage affect the ability to maintain tight tolerances.
Part size also affects shrinkage. Small components have smaller shrinkage and are easier to maintain more stringent dimensional control. Echter, it may be more difficult to maintain tighter tolerances when larger parts contract over a larger distance.
It is helpful to analyze injection mold flow before production. Accurate prediction of gate location, filling rate, shear stress, build-up, Schimmelstroomanalyse helpt potentiële problemen in schimmel te voorkomen, and shrinkage will help determine the tolerance range. Avoid tight tolerances in areas prone to warpage, shrinkage or deformation.
2. Material selection of injection mold products
It is also important to select the right resin to achieve higher product performance tolerances. Different resins have different properties and characteristics. Injection molding is rising rapidly in manufacturing because different resins offer different possibilities.
The part environment may affect plasticity and may result in tolerance deviations. Plastics have a greater thermal expansion than many other materials. In a normal operating environment, test and measurement tolerances, as well as thermal expansion and part shrinkage, are critical to control tolerances.
Shrinkage affects tolerances as described during the design phase of the injection mold part. The geometry of the part may result in different shrinkage rates. Different resins also have different shrinkage. It is important to understand the properties of the resin and the complexity of the part to understand the shrinkage in order to align the appropriate tolerance area.
3. Injection mold processing
Parts requiring tight or tight tolerances shall be manufactured by robust and well-designed moulds. The mold also needs to provide consistent and repeatable heating and cooling. Anders, the shrinkage will be different and the tolerance will be difficult to achieve..
Complex parts need complex injection mold. As injection mold processing becomes more complex and additional components and functions are added, it is important to ensure that all components transfer heat correctly to allow acceptable resin and part cooling.
It is important to determine the proper gate position for the balance of melt flow. This will help to avoid unexpected shrinkage and warpage.
4. Injection mold processing control
Developing a repeatable production process is the key to achieving tight tolerance. From the start of production, proper process and documentation control will ensure that components do not experience unnecessary pressure, heat, or other factors that could damage the performance or application function of the resin.
Over JasonMould Industrial Company Limited
Jasonmould is een Chinese matrijzenmaker van plastic mallen- spuitgietmatrijs:, spuitgietmatrijzen, kunststof blaasvormen, rotatiegieten, medisch spuitgieten van kunststof, twee schoten spuitgieten van kunststof, invoegen lijstwerk, overmolding, metalen spuitgieten, micro-spuitgieten, poeder spuitgieten, keramisch spuitgieten, vloeibare spuitgieten, husky spuitgieten, huishoudelijke schimmel, gietvorm, matrijs gereedschap:, aangepaste mallen, Chinese mallen:, tooling voor snelle prototyping, kunststof prototyping gereedschap, ponsmachine tooling, sterven en tooling voor mobiele/mobiele telefoon onderdelen, auto-onderdelen, stofzuigers, oplaadbare gereedschappen, telefoons, kopieerapparaten, computers, multimedia speakers, en vele andere elektronische producten en huishoudelijke apparaten. En ook een fabrikant van plastic producten, schimmelfabrikant China– kunststof onderdelen, plastic watertank, plastic ballen, plastic containers, plastic gesp, plastic anker, plastic hanger, Plastic lepel, plastic pijp montage:, plastic tuimelen, plastic servies, plastic bekers, plastic flessen, plastic dienblad, plastic cosmetische container, plastic verpakking, plastic voedselcontainer, plastic stoelen, plastic doppen, plastic dop sluiting, plastic buizen, kunststof waterleidingen, plastic knoppen, plastic buizen, plastic gebruiksdozen, plastic rekken enzovoort;.
Contact:
Persoon: James Yuan
Bedrijf: JasonMould Industrial Company Limited
Toevoegen: LongGang Village,LongXi Town,BoLuo County,HuiZhou-stad,Provincie GuangDong, China
Tel: 86-752-6682869
E-mail: [email protected]
website: https://www.jasonmolding.com/custom-injection-molding/
