Casting and Forging Parts Machining
The company has long carried out R&D cooperation and technical exchanges on mechanical processing-related topics with major colleges and universities, providing a strong technical capacity reserve and human resources guarantee for the development of the company.It provides one-stop technical services such as welding, precision machining, and surface spraying for medium and large parts, high-precision parts, and functional structural components of medium and high-end equipment.The supporting testing equipment includes three-coordinate, altimeter, hardness tester, coating thickness gauge, etc.
Why Choose Us
Professional Talent
The company attaches great importance to the improvement of technical capabilities and the introduction and training of talents. At present, there are more than 500 employees, and more than 90% of them have college degrees or above.
Production Capacity
We are committed to precision machining,with experienced process planning and mastery of programming and manufacturing standards for precision components. We can provide customers with comprehensive technical support services and solutions. We have a stable long-term cooperative relationship with suppliers.
Our Service
Demark adheres to the business philosophy of quality, innovation and service, strict manufacturing process, reliable performance quality, and mature manufacturing process technology.
My Factory
Demark (Zhejiang) Precision Technology Co., Ltd. is a high-tech enterprise that provides customers with professional high-precision machining services.
Types of Casting And Forging Parts CNC Machining Service
The Casting And Forging Parts produced by our company mainly include the following types:
Cutting Chamber
The cutting chamber is primarily used for cutting solar monocrystalline silicon, polycrystalline silicon, and other materials. It is particularly suitable for the efficient cutting of large-sized silicon wafers, such as 182×182 mm, 182×210 mm, 210×210 mm, 230×230 mm, and 210 half-wafers.
Gray Cast Iron Box
We provide a complete service that includes casting, machining, heat treatment, and surface treatment.
Custom Grey Iron Casting Box Sand Casting Metal Machining Reducer Housing HT250 HT200 Ductile Cast Iron Foundry
Grey Cast Iron Parts Roller Frame
The CX3625 multi-wire cutting equipment is primarily used for straight sheet cutting of metal materials, including grey cast iron parts. Its five-roller design allows for both slicing and squaring functions, making it ideal for precision cutting applications.
Advantages Of Casting And Forging Parts
Cutting Chamber have many advantages, including:
Well suited to heavier parts with thick cross sections.
Minimizes the size of the “bites”
Allows parts to drop into the cutting area before knife intersection to create a self-feeding action.
Can process larger volumes of less dense parts with a smaller machine.
Limits the bite which is necessary for thicker walled, high-density parts
General purpose allows for better ingestion without biting too much
Raised Bed Knife version processes heavy parts and purgings
Gray Cast Iron Box have many advantages, including:
High Compressive Strength: This strength is defined by the endurance of any metal or alloy to withstand its compressive force. Gray cast irons have a high compressive strength and are therefore widely used for columns in buildings.
Tensile Strength: There are different varieties of gray cast iron, and their tensile strengths vary accordingly.
Deformation Resistance: Gray cast iron is highly resistant to deformation and provides a strong frame.
Low Melting Point: Gray cast iron has a low melting point - 1140 ºC to 1200 ºC.
Resistance to oxidation: Gray cast iron is highly resistant to rust, which is formed by the reaction of oxygen and iron. It is the perfect solution to avoid corrosion problems.
Low cost: One of the many advantages is the ability of grey cast iron to produce complex structures at a relatively low cost. Due to its low price, gray iron castings are common.
Good vibration/damping capability: Gray cast iron also has excellent vibration/damping capabilities, which makes it suitable for mechanical and other enclosure applications.
Ability to withstand thermal cycling: Gray iron castings are capable of withstanding thermal cycling. Thermal cycling is when a component switches back and forth between higher and lower temperatures.
Grey Cast Iron Parts Roller Frame have many advantages, including:
Cost-Effective: Compared to ductile iron and steel, gray iron has a lower cost of production, hence it can be used effectively in the production of large quantities or complex manufacturing projects.
Thermal Stability: Another use of gray cast iron is capable of standing heat stress without deformation, therefore is applicable for use in engines and furnaces..
High Compressive Strength: Gray iron casting is the ability to maintain compressive stresses thus making it ideal for load bearing structures in construction and industries.
Vibration Damping: Additional gray iron properties are its excellent damping characteristics which also means low noise levels when the parts are in use and durability of parts that undergo mechanical stress.
Iron (Fe)
Iron serves as the matrix in grey cast iron, providing structural integrity and mechanical strength. It is the most abundant element in the alloy and forms the basis of its composition.
Carbon (C)
Carbon is a critical alloying element in grey cast iron, typically comprising 2.5% to 4% of its composition. Carbon exists in two forms within the alloy: as graphite flakes and as dissolved carbon atoms in the iron matrix.
Silicon (Si)
Silicon is another essential element in grey cast iron, usually present in concentrations ranging from 1% to 3%. Silicon promotes the formation of graphite flakes and improves the fluidity of molten iron during casting.
Uses of Grey Cast Iron Parts Roller Frame
Automotive Sector
Grey cast iron finds extensive use in the automotive industry for various components due to its excellent combination of properties.
Construction Industry
In the construction sector, grey cast iron is utilized for various structural and decorative elements due to its durability and versatility.
Machinery and Tools
Grey cast iron is indispensable in the machinery and tools industry for various components and equipment.
Heat Treatment Of Gray Cast Iron Box
Stress Relief Annealing
In order to eliminate the residual stress of the casting, stabilize its geometric dimensions, and reduce or eliminate the distortion caused by cutting, the casting needs to be stress-relieved annealed.
Graphitization annealing
If there is no eutectic cementite in the casting or its quantity is small, low-temperature graphitization annealing can be performed; when the quantity of eutectic cementite in the casting is large, high-temperature graphitization annealing must be performed.
Normalizing
The purpose of normalizing gray cast iron is to improve the strength, hardness and wear resistance of castings, or as a preparatory heat treatment for surface quenching to improve the matrix structure.
Quenching and tempering
The quenching process is to heat the casting to a temperature of Ac1 upper limit + 30 ~ 50℃, usually 850 ~ 900℃, so that the structure is transformed into austenite, and is kept at this temperature, and then quenched, usually using Oil quenching.
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