1. The development direction of the testing machine is from sample preparation testing to product (i.e., finished and semi-finished products) testing. This requires that the corresponding fixtures be changed from the fixtures used for standard sample testing to the fixtures used for finished product detection development of.
2. The use of tensile testing machine fixtures is developing in the direction of high efficiency and low labor intensity. In the past, fixtures were generally mechanically locked, which was time-consuming and labor-intensive, labor-intensive, and inefficient. With the improvement of the working environment and the need for large-scale testing (random random inspection of the production line), the clamping method of the fixture has developed from the original mechanical clamping to the pneumatic clamping and hydraulic clamping.
3. Fully automatic fixture: from sample size measurement to clamping, to the start of the test, and finally the test report is completed at one time. Such fixtures are very costly and are only suitable for testing and inspection of large quantities of the same samples or finished products.
4. The increase of environmental tests (high and low temperature tests), the increase in the use of high and low temperature fixtures. The increase in environmental tests (high and low temperature boxes) makes it more difficult to design fixtures. We know that the national standards for high-temperature tensile testing have provisions: threads for round specimens and holes in plate specimens. Because the connection is fixed, the design of the fixture is relatively simple. However, the high and low temperature test is different. It is generally tested in a high and low temperature box, and its sample generally has a short gauge length (generally a normal temperature sample). In this way, the fixture must be installed in the high and low temperature box. The high and low temperature test is generally limited by the stroke of the testing machine (the stroke of the testing machine when the standard fixture is installed), which requires the small size of the fixture, the test force, and the resistance High and low temperatures are generally more difficult to design.
5. The number of continuous test fixtures has increased; in the past, samples were generally used for testing, and the stretching and compression of the samples were carried out separately (that is, the stretching and compression were performed with different fixtures), but now more and more finished products are tested. The sample must be stretched, compressed, and highly efficient in the same test. It can only be stretched and compressed using the same fixture.
6. Increased test fixtures for special industries. With the development of science and technology, some emerging industries have put forward new requirements for test fixtures, such as the requirement that the fixture structure is small, non-magnetic, and corrosion-resistant (tested in solution) and so on. Due to the particularity of the fixture used in the testing machine and the continuous emergence of new materials, the fixture design has been in a passive situation. We encounter new materials every day and need to design new fixtures. We can only summarize the past successful experience to adapt to the new development trend.
Ottomans with rattan hand weaving style and aluminium powder-coated frame, you can sit or put your foot on that and rest yourself competely. Ottomans together with the lounge chair generally, you can relax and enjoy your life.
Even some ottoman have storage function, you can put pillow, books or small items on that.
Handwoven premium resin wicker UV resistant
Rust-resistant powder-coated frames
Cushions included with 30 density sofa foam
Versatile tempered glass tables
Cushions also available with 100% waterproof fabric.
Outdoor ottomans furniture with different style and hand weaving
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