Plastic semi-finished products and finished products testing
Test from the finished product or semi-finished products for the purpose of the sample and molding material testing is completely different.Molding material test have comparable data.This data can be used to compare the material, but in most cases, the characteristics of the finished product cannot be computed.
Therefore, toSemi-finished products and finished product testThere are two different goals: to determine the product features and material properties.
To resist the ability of the notch stress test of low voltage cable
- Within each car are a lot of low voltage cable.Throughout the body, the cable assembly is friction and sharp edges.The cable insulation layer cannot be destroyed.
- In order to test the performance of auto industry developedLV 112The test method to determineCable insulation against stress of incisionAbility.
- The principle is simple.Cable placed on a tablet connected to an electric contact element.As a cutting head, the test head with high hardness, high strength wire connected to the cable to be tested at the same time to form a loop.Take advantage of this circuit, cutting head load a test on the cable force, until the pressure head and cable formed between the conductor loop.Testing machine record sample by force.This provides a practical method of evaluating the notch sensitivity of cable insulation.
The packaging stacking height
- Yogurt cup, beer or glass of crates - each packing is placed in the warehouse for a period of time, and stacking together.So how to make packing stacking layers and does not destroy the bottom of the goods?
- This problem can be easily solve by a testing machine.In order to solve this problem, will carry the goods or empty boxes alone after stacking compression between machine tooling, to measure the maximum carry the load.This value allows us to determine how much can stacking layer of the goods.
- So how to improve the packing?Usually have to use the lowest cost of materials to achieve the required mechanical performance index.In order to achieve this, need a smart, constructive design, and where the engineer must understand the main points of the wooden case.Testing machine equipped with a camera and video capture testXpert III + option, it can be synchronized video and force - displacement curve.It can help engineers to analyze cases in any force and improve those important points in the design of the deformation behavior.
Spray test according to the pressure of the pump
- Many products are sold after packaging, the packaging must also have good functionality.
- One example is the spray pump, is used in expensive perfumes and used for household cleaners.The window cleaner must be put in a bottle, but also must have a certain pressure in the form of water or spray jet to the window.
- According to the pressure must be affordable for users, a water yield must be enough at the same time, so that users often don't have pressure.
- ZwickRoell electronic mechanical testing machine applies here, to improve products, through test according to the stress under different pump speed to control the quality.Intuitive sense of quality is such a test.
Measure the strength of the backpack pulled off
- School's backpack must withstand wear many times - heavy books and a bag of snacks, or other children at school need anything.The children carrying a backpack or sometimes hang bag carrying belt and shoulder strap on the hook.Want to use for many years, so the backpack carrying belt and shoulder straps must be firmly and package together.
- This example is to test a backpack.ZwickRoell工装产品线中的一个夹具将双肩背包固定在试验机上，同时有一个钩子拉着拎带。这保证了缝合线和塑料部分可以经受多年的磨损和拉扯。
Testing a product of the material performance
- Finished or semi-finished products in the production process, the processing of polymer has experienced a variety of mechanical, thermodynamics and chemical processing, generally formed in the course of polymer chains and injection direction.As a result, the mechanical properties of polymer on the different components are different.
- You want to compare a from injection molding, extrusion or die made of material performance of products, will make a sampling plan.The sampling plan is based on the product forming process, and the number of samples, sampling form, size and direction.
- After proper modulation, in accordance with the sample ofAlso used for molding material test standardTo test the specific information or product specifications.
- From the production line regularly sampling ensures that the specific material properties of a product in a longer production cycle to keep within a specified tolerance range.
- Provide reliable universal testing machine and amplify ZwickRoell meter used for tensile test, bending test and compression test, also provides a pendulum impact tester, hardness tester, melt index apparatus and HDT/Vicat tester, equipped with manual or automatic system.In this way, the results of your test data discreteness was greatly decreased.
