Since the plastic bottle cap has the characteristics of strong plasticity, small density, high specific strength, high degree of bonding, high chemical stability and various appearances, it is favored by more and more manufacturers and people. The selection of
plastic cap moulds has a great influence on the quality of the whole mould. Therefore, the selection principle of plastic cap moulds generally has the following four points:
Fatigue fracture performance
In the working process of the plastic bottle cap mold, under the long-term effect of the cyclic stress, it may cause fatigue fracture in the long run. Its form has small energy multiple impact fatigue fracture, tensile fatigue fracture contact fatigue fracture and bending fatigue fracture. The fatigue fracture properties of a mold depend mainly on its hardness, strength, toughness, and the amount of inclusions in the material.
2. High temperature performance is better
When the working temperature of the mold is higher, the hardness and strength will be lowered, resulting in early wear of the mold or plastic deformation and failure. Therefore, the mold material should have high anti-tempering stability to ensure that the mold has high hardness and strength at the working temperature.
3. Resistance to cold and heat fatigue
Some plastic cap molds are repeatedly heated and cooled during the working process, causing the surface of the cavity to be subjected to tensile and pressure-induced stresses, causing surface cracking and spalling, increasing friction, impeding plastic deformation, and reducing dimensional accuracy. , resulting in mold failure. Hot and cold fatigue is one of the main forms of hot work die failure. Therefore, such cap molds must have high resistance to cold and heat.
4. Corrosion resistance
Some molds, such as plastic molds, when working, due to the presence of chlorine, fluorine and other elements in the plastic, after the heat, the HCI, HF and other strong aggressive gases are resolved, eroding the surface of the mold cavity, increasing its surface roughness and aggravating wear and tear.
If the company wants to produce high-quality plastic cap molds, it is necessary to pay attention to the above four points in order to ensure the high standard and high performance of the plastic cap molds.
HR STONE has been in natural stone business
since 1995.we mined Semi Precious Stone
rough for recent years, mainly Blue Sodalite and Tiger Eye rough, specially
blue sodlite:
Blue sodalite quarry yield two kins of
blocks: big size blocks and small size blocks. Max size of big block can be about 250*180cm and weight
about 15-20 ton per block. Small block has two sizes: 3-10cm 10-30cm . Annual yield of blocks is about
100containers.We also have two blue sodalite color classifications, one is blue mainly,
one is blue and white mixed.
According to the color purity and texture,
the blocks have different ranks for your reference.
We ship the blocks to China and produce
them into finished products, such as translucent blue sodalite slabs, table and arts. Whether
super blue color or blue and white mixed, you can find out the right color you
favor from our blue sodalite blocks and finished product.
We normally produce translucent blue
sodalite slab with small blocks, so the blue sodalite is laminated with natural
or artificial stone, glass, or Acrylic.
If you prefer blue sodalite slab is
translucent you can chose slab laminated with glass. Transparent blue sodalite
is full of bright and fantastic colors
and atmosphere.
As blue is rare color in natural stone,
Blue sodalite is very suitable to be produced as translucent plate, table top,
wall and floor tiles.
Tiger Eye only has small size blocks, we
have super rank ( super gold color) and commercial rank. Tiger eye is very
suitable for wall and floor tiles, table, countertops, Bracelet, beads-
Welcome
to contact HR STONE on Sodalite Stone For Sale, Semi Precious Stones Blue and
yellow.
Semi Precious Stone Rough
Semi Precious Stones Rough,Semi Precious Stones Meanings,Semi Precious Stones Blue,Sodalite Stone For Sale
Fuzhou HuaRen International Imp&Exp.Co,Ltd , https://www.huarenstone.com