Definition of casting

Casting
A process in which a metal is smelted into a liquid that meets a certain requirement and poured into a mold, and solidified and cleaned to obtain a casting (part or blank) having a predetermined shape, size, and performance. The basic process of the modern machinery manufacturing industry. The blank produced by casting has low cost, and it can show its economicality for parts with complicated shape, especially with complex inner cavity; at the same time, it has wide adaptability and good comprehensive mechanical properties. However, materials required for casting production (such as metal, wood, fuel, modeling materials, etc.) and equipment (such as metallurgical furnaces, sand mixers, molding machines, core making machines, falling sand machines, shot blasting machines, etc.) are more It can pollute the environment by generating dust, harmful gases and noise.
Casting is a metal thermal processing technology mastered by humans. It has a history of about 6,000 years. In 3200 BC, copper frog castings appeared in Mesopotamia. Between 13th and 10th centuries BC, China has entered the heyday of bronze castings, and its craftsmanship has reached a fairly high level, such as the Shang dynasty’s 875 kilograms of the mother-in-law, Fang Ding, the Warring States’ Zeng Houyi, and the Western Han Dynasty. Translucent mirrors are all representative products of ancient casting. The early casting was greatly influenced by pottery, and most of the castings were tools or utensils for agricultural production, religion, and life, and the artistic color was strong. In 513 BC, China cast the world's first iron castings found in the text - Jin Guozhu Ding (about 270 kg weight). Around the 8th century AD, Europe began to produce cast iron parts. After the industrial revolution of the 18th century, castings entered a new era of service for large industries. In the 20th century, the development speed of casting was very fast. The development of spheroidal graphite cast iron, malleable cast iron, ultra-low carbon stainless steel and aluminum-copper, aluminum-silicon, aluminum-magnesium alloy, titanium-based, nickel-based alloy and other cast metal materials was developed. A new process for the inoculation of cast iron. After the 1950s, there were new technologies such as wet sand high pressure molding, chemical hardening sand molding and core making, negative pressure molding, and other special casting and shot blasting.
There are many kinds of castings. According to the modeling method, it is customarily divided into: 1 ordinary sand casting, including wet sand type, dry sand type and chemical hardening sand type. 2Special casting, according to the modeling material, can be divided into special castings with natural mineral sandstone as the main modeling material (such as investment casting, clay casting, casting workshop shell casting, negative pressure casting, solid casting, ceramic casting). Etc.) and special castings with metal as the main casting material (such as metal casting, pressure casting, continuous casting, low pressure casting, centrifugal casting, etc.). The casting process usually includes: 1 casting (the liquid metal is used as a container for solid casting). The casting can be divided into sand type, metal type, ceramic type, mud type, graphite type, etc. according to the materials used, and can be divided into times according to the number of times of use. Sex, semi-permanent and permanent, the pros and cons of casting preparation are the main factors affecting the quality of castings; 2 melting and casting of casting metals, cast metal (casting alloy) mainly cast iron, cast steel and cast non-ferrous alloy; 3 castings Handling and inspection, casting treatment includes removal of foreign objects on the core and casting surface, removal of the riser, burrs and burrs, as well as heat treatment, shaping, anti-rust treatment and roughing.

JESSRO Polythene (PE) pipe fittings are all using fresh original materials. And all the materials are PE100 only .This materials can guarantee our PE fittings be able to meet the SDR11 standard. We have all the size from 20mm to 800mm in a full range items.

 

Specifications

HDPE Pipe Fittings
1.PE100/PE80
2.Butt fusion HDPE pipe fittings
3.SDR7 to SDR26
4.Can be used more than 50 years

 

Advantages: supply, industrial liquids transportation and sewage treatment

 

Applications: Water
1. No heavy metal additives, not be covered with dirt, not be contaminated by bacterium
2. Corrosion Resistant: Resist chemical matters or electron chemical corrosion
3. Lower Installation Costs: Light weight and ease of installation can reduce installation costs by as much as 50% over metal piping system
4. Higher Flow Capacity: Smooth interior walls result in lower pressure loss and higher volume than metal pipes
5. Long Life: More than 50 years under normal conditions
6. Recycled and Environment-friendly

 

All of our PE fittings can following your specific requirement .And we can supply you the professional service. Looking forward to the pleasure of receiving your detail inquiry!