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1. Technology

(1) Technology Introduction

Sand casting, also known as sand mould casting, is a metal casting process characterized by using sand as the mold material. The term "sand casting" can also refer to an object produced via the sand casting process. Sand castings are produced in specialized factories called foundries. Over 70% of all metal castings are produced via sand casting process.
Sand casting is relatively cheap and sufficiently refractory even for steel foundry use. In addition to the sand, a suitable bonding agent (usually clay) is mixed or occurs with the sand. The mixture is moistened, typically with water, but sometimes with other substances, to develop the strength and plasticity of the clay and to make the aggregate suitable for molding. The sand is typically contained in a system of frames or mold boxes known as a flask. The mold cavities and gate system are created by compacting the sand around models, or patterns, or carved directly into the sand.

(2) Process Parameters

Process : Resin Sand, Hot Sand, Precoated Sand, Green Sand ,Clay Sand for option.

Weight from 0.5kg to 2,000kg.

Surface Finish: Polishing, oiled(rust-prevented), zinc-plated, chrome-plated, hot dip galvanized, sandblasting, painting, powder-coating

General Tolerance: ISO8062-CT12

Surface Roughness: Ra 12.5

(3) Material Introduction

Sand casting material ranging from Gray Iron, Ductile Iron, Malleable Iron, Steel, Stainless Steel, Aluminum to Brass.

Commonly used material :HT100,HT150,HT200,HT250ï¼?QT450-1,QT600-3

2. Product Introduction


Brand Name: WOTECH

Specification: Customized requirement

Material: Iron

Application: Industry

Place of Origin: Shandong, China

Payment Terms: L/C,D/A,D/P,T/T

Packaging: Outer :Non-coniferous wooden package

Inner: Carton box

Port:Qingdao/Ningbo/Shanghai/Shenzhen/Guangzhou

Engineers: 8 professional engineers

Nickel-based wear-resistant alloy casting
Category:Nickel alloy casting
Nickel-based wear-resistant alloy casting, its product use environment is more complicated than general wear-resistant cast iron. Common grades are N06002 etc.
Product Description
Nickel-based wear-resistant alloy casting is to cast nickel-based wear-resistant alloys into products such as valves and pump parts that can be used.It can be used in equipment such as valves, pumps, seals, brakes, etc. in jet aircraft and internal combustion engines.
Nickel-based wear-resistant alloy refers to the alloy product, which can not only withstand abrasive wear, adhesive wear and other wear, but also withstand medium corrosion and high temperature oxidation. Therefore, its working environment is more complicated than that of general wear-resistant steel and other materials. Common grades are N06002.
Nickel-based wear-resistant alloys also have wear-resistant properties and can also withstand high temperature conditions and corrosion to a certain extent. They are usually used for wear-resistant parts that work in air or low-lubricating liquids, such as atomic energy equipment, petrochemical equipment, and jet aircraft manufacturing. and other industries.

Medium-strength structural alloy casting
Category:Nickel alloy casting
Nickel-based heat-resistant alloys is a kind of nickel-based alloy, and the common grades are GH738, GH4738 etc.
Product Description
Nickel-based heat-resistant alloys is a nickel-based alloy. There are many different classifications of nickel-based alloy. Heat-resistant alloy is a material that can be used at high temperatures.For example, chemical and chemical equipment in the petrochemical field, atomic power generation in the energy field, comprehensive utilization of coal and other fields.
The main elements of nickel-based heat-resistant alloys are nickel and chromium, and some other elements are also added to improve the solid solution strengthening of the alloy. They can still have high strength and oxidation resistance at high temperatures, and are often used in similar aircraft engines. and other high-temperature parts on the equipment.
Nickel-based alloys can dissolve more elements in them, and can still maintain good organizational stability after dissolving the elements. The representative Incoloy alloy series is resistant to corrosion and creep resistance. It can also be used in Stress cracking is prevented to a certain extent.

Category:Aluminum alloy casting
Cast aluminu-silicon alloys is a process in which aluminum-silicon alloys are processed into products that can be directly used through a casting process. Common grades are A356.0, A413.0 and so on.
Cast aluminu-silicon alloys is a very important industrial alloy. It has important uses in the automobile manufacturing industry, high-tech electronics industry, aerospace materials and other products, and is an ideal wear-resistant material.
Aluminum silicon alloy may be a reasonably ferroalloy with aluminum and silicon because the main components. Generally, the content of silicon is 11 and atiny low amount of copper, iron and nickel are added to enhance the strength.Aluminum silicon alloy is employed to manufacture low and medium strength castings with complex shapes, like covering, motor shell, bracket, etc. it's also used as brazing solder.
When the silicon content is low (such as 0.7), the ductility of aluminum silicon alloy is sweet, which is usually used as deformation alloy.
When the silicon content is high (such as 7%), the filling property of aluminum silicon alloy melt is nice, which is usually used as casting alloy.
In the Al Si alloy with silicon content exceeding Al Si eutectic point (silicon 12.6%), when the particle content of silicon is as high as 14.5% 25%, adding a specific amount of Ni, Cu, Mg and other elements can improve its comprehensive mechanical .

Carbon steel casting
Category:Steel casting
Carbon steel casting has high strength, plasticity and toughness. Common grades include Q195, Q215, Q235, Q255, Q275, etc.
Product Description
Carbon steel casting is used in heavy machinery to manufacture parts that are subject to heavy loads, such as rolling mill stands, hydraulic press bases, etc. It is also used to manufacture more important mechanical parts with complex shapes and high requirements on mechanical properties, and it is difficult to form by forging and other methods in the process.
Carbon steel refers to iron-carbon alloys, generally the carbon content is between 0.0218% and 2.11%. As the carbon content is higher, the strength of carbon steel is higher, but correspondingly, the plasticity of the product will decrease. Usually there are elements such as silicon manganese in carbon steel. These different types of small amounts of elements will have different effects on the strength and hardness of carbon steel products.
Cast carbon steel generally has a relatively low production cost, gradually has high strength and toughness, and has good plasticity, and can be used to manufacture parts that bear large loads, such as rolling mill stands for heavy mechanical clocks, hydraulic press bases, etc. It can also be used to manufacture parts that are subjected to high forces and shocks, such as wheels, couplers, bolsters and side frames on railway vehicles.

Low temperature alloy casting
Category Titanium alloy casting
Low temperature alloy casting can be used as an important material for the low-temperature structure of hydrogen-oxygen engines. Common grades are TC4 etc.
Product Description
Low temperature alloy casting can show stronger mechanical properties at low temperature.At present, it has been used in the field of liquid rocket engines, mainly as structural materials such as hydrogen storage tanks for hydrogen-oxygen engines, hydrogen pump impellers, etc., which greatly improves the comprehensive performance of liquid rocket engines.
Low-temperature titanium alloys refer to titanium alloys that can work normally under low temperature conditions. They are generally divided into three categories, alpha titanium alloys, beta titanium alloys and alpha-beta titanium alloys. Typical low-temperature titanium alloy products are suitable for working at 253C as a storage container for liquid fuel, and some alloys have good low-temperature plasticity and fracture toughness.
The strength of low-temperature titanium alloys can be increased as the temperature decreases, and the toughness remains basically unchanged, making it easy to weld. It has high specific strength, corrosion resistance and low thermal conductivity. It can not only be used as a storage container for low-temperature objects, but also can be used as low-temperature structural parts for the aerospace industry

Nickel-based shape memory alloy casting
Category:Nickel alloy casting
Nickel-based shape memory alloy casting is mainly used in aerospace and biomedical fields. Common grades are N06600 etc.
Nickel-based shape memory alloy casting usually uses a vacuum induction furnace to smelt the master alloy to ensure the composition and control the gas and impurity content.Shape memory alloys are made of springs and other devices, and can also be used as fire prevention devices. It can also be used in various sensors.
Nickel-based shape memory alloys usually refer to nickel-titanium alloys. By changing the proportion of titanium in the alloy, the recovery temperature of the alloy can be different. Because of the characteristics of shape memory alloys, it is widely used in the fields of aerospace and biomedicine. important role.
Shape memory alloys have a shape memory effect, which can restore the shape before deformation at a specific temperature. At present, it plays an important role in the aerospace field and is used as an interface sealing function in pipeline transportation. In addition, it also plays a role in medicine, and can be used as artificial bones, spectacle frames and so on.