News - High and low pressure casting, gravity casting, mold making, focus on aluminum alloy casting plant

Die casting principle advantages and disadvantages, applications and services

2024-11-13

What is high pressure die casting? High pressure casting principle: high pressure die casting (HPDC) refers to a production of metal products casting process, the principle of the process is to melt the metal solution at high temperature through the hopper will be melted metal liquid poured into the die casting machine injection pipeline, in the piston or plunger in the hydraulic pressure or pressurized gas push forward. Make the melted metal liquid filled die casting mold cavity, under the action of pressure forming and solidification and obtain castings, then die casting machine in the role of the cylinder to open the high-pressure die casting mold, aluminum die casting parts out, this process is called high-pressure die casting. As shown in the following diagram die casting machine production moving picture: high pressure die casting process characteristics of high pressure die casting advantages and disadvantages: high pressure die casting advantages: 1, casting high dimensional accuracy, surface finish is good, generally equivalent to 5 ~ 8. 2, high strength and hardness ...

Casting crucible (silicon carbide crucible, graphite crucible, etc.) use tutorial

2024-11-13

What is a casting crucible? A casting crucible is a container used to hold and melt metal materials during the casting process. The melting point of metals is relatively high (Gold: 1064°C) Silver: 962°C Copper: 1083.4°C Cast iron: 1200°C Iron: 1535°C Aluminum: 660°C). Therefore, casting crucibles should be made of high-temperature resistant and refractory materials. Types of casting crucibles: What are casting crucibles made of: Casting crucibles are mainly categorized by shape: Round crucible: the most common shape, suitable for most melting needs. Square or Rectangular Crucible : Designed for the specific requirements of the metal, easy to handle and melt specific shapes of metal. Special shapes of crucibles: such as V-type, U-type, etc., which are used for specific melting processes or to meet special operating requirements. Crucible Furnace Operation and Maintenance Regulations: Before use, you must be familiar with the setup...

Low Pressure Die Casting Principles and Applications

2024-11-13

What is low pressure die casting? Aluminum low pressure die casting (LPDC) is to make liquid metal under pressure to complete the filling cavity and solidification process two get casting a casting method. Because there is a certain pressure but far lower than the pressure of high-pressure die casting (the highest pressure is only for high-pressure die casting 1%), low-pressure die casting pressure range in (20 ~ 60kPa), there is a small pressure for its role in the slow speed, but also be able to manufacture a more complex internal hollow products (hollow part of the need for the sand core subsequent to the removal of the so-called low-pressure sand casting), and the principle of its role is closer to the Aluminum alloy casting, so it is also called aluminum low pressure casting. Low-pressure die-casting process: in the impermeable crucible, through the pipeline into the compressed dry gas, molten aluminum under the action of gas pressure, along the rising liquid tube (crucible middle...

LED light structure

2024-11-13

What are LED lights? LED (Light Emitting Diode) light is a light emitting diode, an electronic device that converts electrical energy into light energy. How LED Lights Work LED lights work on the principle of light emission based on semiconductor materials. When a current is passed through a PN junction, forward injected electrons and holes located in the active layer of the PN junction compound to release energy. This energy is emitted in the form of light. In semiconductors, they release excess energy through carrier complexes, resulting in the emission of photons that directly emit red, yellow, blue, and green light. Based on this, any color of light can be emitted by adding phosphors using the trichromatic principle. Depending on the material and material structure, the color, brightness and power of LED light may vary. Commonly used in wall lights, street lights and other fields...

Difference between die-cast one-piece wheels and spoked wheels for bicycles

2024-11-12

In the day-to-day use of confidence and electric vehicles, performance is a key decision in choosing whether integrated wheels (integrated wheels) or spoked wheels are right for the vehicle's ride. This article will describe the benefits and features of two different wheels. Integrated Wheel Spoke Wheel Die-cast Integrated Wheel "Integrated Wheel" refers to a wheel consisting of a hub, rim, and spokes called an integrated wheel, " Die-casting" refers to the aluminum alloy die-casting process, and "Die-cast Integrated Wheel" refers to the high pressure die casting mold casting wheel is called die casting one-piece wheel. Aluminum die casting plants usually use adc12, a380 and other die casting aluminum alloys for die casting. Spoke Wheel A spoke wheel, also known as a wire wheel, is a common wheel structure in motorcycles and bicycles. It consists mainly of a circle, spoke cap, spokes and shaft. The circle is covered with holes. These holes place spoke caps, which are attached to the spokes. The spokes pass through the spoke...

Gravity die casting technology: Principle, application

2024-10-29

What is gravity casting? Gravity casting refers to the melted metal liquid, under the action of gravity from top to bottom flow, and flow filled with the specified model cavity, cooling and solidification process. This process is called gravity casting. Some places also called it gravity die casting. Compared with high-pressure die casting, flow more slow, simple process. Not easy to produce porosity. And can be used in a wider range of metal. Casting process: liquid metal → filling → solidification contraction → castings Common types of gravity casting metal: gravity casting types of classification: more with the different types of molds: can be divided into sand core gravity casting, metal-type gravity casting, disappearing mold gravity casting. Sand core gravity casting Sand core gravity casting, refers to the mold made of coated sand, more coated sand of different...

Sand blasting

2024-10-27

Sandblasting is a common surface treatment method in aluminum alloy product manufacturing and CNC machining production. In this article, I will detail the principles, application methods, advantages and disadvantages of the sandblasting process. What is sandblasting? Sandblasting is a surface treatment technology powered by compressed air to form a high-speed jet beam, the jet (such as sand, pearl salt, sodium bicarbonate, glycine powder, silver, etc.) high-speed jet to the surface of the workpiece or object to be treated. The beaded medium is guided to the surface of the material. The target surface is smooth, clean and shiny by friction reaction. Sandblasting is a traditional and time-consuming process for large and complex materials with different shapes. As a result, the concept of sandblasting was patented and introduced in the United States in 1870. The concept of sandblasting comes from the natural phenomenon of sand erosion caused by dust in desert areas. What is sandblasting used for...

Aluminum surface treatment process

2024-10-21

Aluminum surface treatment process can be divided into: Aluminum surface treatment process have those? I. Polishing Polishing is a common aluminum processing method, designed to reduce the roughness of the surface of the workpiece through mechanical, chemical or electrochemical action, so as to obtain a bright and flat surface. This processing method mainly utilizes polishing tools and abrasive particles or other polishing media to modify the surface of the workpiece. The main purpose of polishing is not to improve the dimensional or geometrical accuracy of the workpiece, but rather to focus on obtaining a smooth surface or mirror shine. In some cases, polishing is also used to eliminate luster, i.e., matting. A common tool used in the polishing process is the polishing wheel, which is usually made of multiple layers of canvas, felt or leather laminated together and clamped on both sides by a circular metal plate. The rim of the polishing wheel is coated with a polishing compound, which...

Aluminum alloy processing technology

2024-10-21

Aluminum is the most widely used and widely applied metallic material among non-ferrous metals, and its applications are still expanding. Aluminum produces an endless variety of aluminum products. According to statistics, there are more than 700,000 kinds, from the building decoration industry to the transportation industry, aerospace and other industries have different needs. Today, I will introduce the processing of aluminum products and how to avoid processing deformation. The advantages and characteristics of aluminum are as follows: Aluminum products processing technology Aluminum products punching 1, cold punching Use of materials aluminum particles. The extruder and die are used for one-time molding, which is suitable for oval, square, rectangular products and other column-shaped products or product shapes that are difficult to achieve by stretching process. (Such as Figure 1, Figure 2, Figure 3 products) The tonnage of the platform used is related to the cross-sectional area of the product. The gap between the upper die punch and the lower die tungsten for the product...

Sand casting mold material selection

2024-10-12

What materials are used for casting molds? Casting molds use the following materials: casting molds for the number of uses due to the casting production varies, mainly divided into metal molds and non-metallic molds non-metallic mold materials are: wood, plastic, etc.. Metal mold materials are: plastic, aluminum alloy, cast iron, steel and so on. Wooden molds At present, wooden molds are widely used in manual or small batch production, but with the increasingly stringent environmental requirements, the use of wood will be more and more limited, rather than true casting. True casting uses Styrofoam board as the material, cuts and bonds it into shape, and then pours it into a casting. Compared with wood molds, this method not only saves wood, but also makes castings with higher dimensional accuracy and better surface roughness. Plastic Molds The application of plastic molds is on the rise, especially with the introduction of processable plastics to the market...

Sand casting process

2024-10-08

What is sand casting? Sand casting, also known as sand casting, is a time-honored method of casting process with a wide range of applications across the globe. It is a process method of producing castings by using clay-bonded sand (or sand molds made of other materials such as gypsum and silicone resin) as the molding material. The principle is to take advantage of the softness and ease of molding of the sand mold by pouring molten metal into the sand mold, and then crushing the sand mold after the metal has solidified in order to obtain the desired casting. Applied in a variety of metals, common aluminum sand casting, iron sand casting, copper sand casting, now let the aluminum alloy casting factory located in China Ningbo He Xin for everyone to explain the sand casting process. Conventional process flow of sand casting production Sand casting process (1) Preparation of molding sand and core sand The molding material for sand casting is mainly used for...

Mold flow CAE (fluid simulation technology) casting applications

2024-10-08

Nowadays, with the development of computer software, artificial intelligence, simulation and analysis software accuracy and credibility, mold flow analysis software in the casting industry is more and more common. cae simulation technology is widely used in the development of casting molds and product production. Today, I will introduce the widely used in the industry software magma, flow3d, procast, anycasting, China casting CAE, the other have novcast, jscast. more professional simulation soft or: anysys , star ccm wait for software, this kind of software is more complex, mainly for automobile, aircraft, ship simulation. Basic Principle CAE (Computer Aided Engineering) is based on the basic principles of fluid mechanics and solves the equations of motion of fluids by numerical methods, thus simulating the flow state of fluids. These equations usually include mass conservation equations,...

Aluminum alloy gravity casting, high-pressure casting, low-pressure casting process introduction awareness

2024-09-04

Gravity casting introduction: gravity casting refers to the aluminum liquid in the earth's gravity under the action of gravity injection casting process. Broad gravity casting gravity casting is divided into sand casting, metal type (steel mold) casting, disappearing mold casting. ; Narrow gravity casting refers to the metal type casting. Metal casting is divided into upright hand casting, tilted casting is now most commonly used metal mold (steel mold) casting. The mold is made of heat-resistant alloy steel, casting aluminum castings strength, size, appearance are higher than other casting processes. Aluminum liquid for gravity casting is generally poured manually into the gate, relying on the self-weight of the metal liquid to fill the cavity, exhaust, cool, and open the mold to obtain the sample. The process flow is generally as follows: aluminum liquid melting, pouring, exhausting, cooling, mold opening, cleaning, heat treatment, processing. -Ningbo Hexin Aluminum alloy gravity castings are ...

Difference between casting flange and forging flange

2024-09-03

Casting flange Casting flange, blank shape and size accuracy, small processing, low cost, but there are casting defects (porosity. Cracks. Inclusions); casting internal organization streamline is poor (if it is cutting parts, streamline is poor); forging flange is generally lower than casting flange, low carbon content, not easy to rust. Forging streamline good, dense organization, mechanical properties better than casting flange; if the forging process is not appropriate, the grain will be large or uneven, there will be hardening cracks, forging cost is higher than casting flange. Forgings can withstand higher shear and tensile forces than castings. The advantages of castings are complex shape and low cost; uniform internal organization, no casting holes, inclusions and other harmful defects; casting flanges and forging flanges, such as centrifugal flanges, belong to one of the casting flanges. Centrifugal flange is a precision casting...

Heat Treatment of Aluminum and Aluminum Alloys - Solutions

2024-08-30

When heat treating aluminum and aluminum alloys, Ningbo Hersin recognizes the current problems faced and why tight control of process fluctuations and equipment deviations is critical. In order to provide assistance to colleagues in the field of heat treatment, Ningbo Hersin has summarized and categorized the most commonly encountered process problems and put forward a number of targeted suggestions for solving them. Next, these topics will be discussed in more depth. Heat treatment related problems For the heat treatment of aluminum, the most reported problems include: 1) Wrong placement of parts Wrong placement - in the solid solution when the temperature is relatively high product rigidity is poor, easy to squeeze under the action of gravity deformation. Correct placement (Figure 1) avoids these problems. Figure 1. Correct placement of parts 2) Excessive heating/temperature rise - This causes thermal deformation and should be prevented. Correctly...

Influence of elements in aluminum alloys on the properties of aluminum alloys

2024-08-30

Aluminum Aluminum is a very common element with the symbol Al and atomic number 13. The earth's crust is rich in reserves of the element Aluminum with 8.31 TP3T, the third most abundant metallic element in the earth's crust after oxygen and silicon. Aluminum Alloy Aluminum is one of the light metal materials to which a certain amount of other alloying elements are basically added. Aluminum alloy In addition to the general characteristics of aluminum, due to the different types and amounts of alloying elements, it also has certain alloying characteristics. Aluminum alloy density of 2.63 ~ 2.85g/cm3 high strength (σb 110 ~ 650MPa) with good casting properties and plastic processing properties, good electrical and thermal conductivity, good corrosion resistance and weldability, can be used as structural materials casting, stamping, forging and other processes are widely used in aerospace, aviation, transportation, construction, electromechanical,...

Low pressure casting equipment

2024-08-05

Low-pressure casting (low-pressure casting) equipment is the production of aluminum alloy low-pressure casting products, usually used in batch product production and manufacturing industries: such as aluminum alloy low-pressure casting automobile wheel production, steering knuckle production, automobile transmission, safety explosion-proof shells, automobile gear box production. Today Ningbo Hexin explains the composition of low-pressure casting equipment: 1. Machine: The machine is one of the components of the low-pressure casting machine. The machine is the platform that prevents the mold. Because the machine needs to place the mold, the machine's material should usually choose a strong, slightly thicker steel to ensure that the mold is placed after the stable, safe and reliable operation of the equipment . 2. Holding Furnace: Holding Furnace usually has a crucible and a melting pool. Its function is to insulate the metal material (usually aluminum alloy), keep the temperature of the molten metal material within a reasonable range, the holding furnace should...

Difference between low pressure casting and gravity casting

2024-08-05

Low-pressure casting and gravity casting are aluminum alloy casting process, low-pressure casting is also known as anti-gravity casting, low-pressure casting. Low pressure casting is also known as anti-gravity casting, low pressure casting. The difference between it and gravity casting is mainly reflected in the following aspects. The difference between the casting principle of operation: the difference between the casting principle of operation: low pressure casting is also known as anti-gravity low pressure casting, so the name of the casting method is through the gas pressure against gravity casting molding, as shown in the figure on the right: through the sealed crucible injected into the gas (usually 0.06 ~ 0.15MPa)), the aluminum liquid in the role of pressure through the middle of the pipeline, the product for the molding of the casting, holding pressure for a certain period of time, the aluminum water cooled in the mold cavity, the aluminum water cooled in the mold cavity. Aluminum water in the mold cavity cooling molding, through the discharge of gas pressure, open the mold, remove the product. Gravity casting refers to the casting of aluminum water through the action of gravity → filling → solidification and contraction → casting, this...

How the low pressure casting machine operates

2024-08-05

First, the operation of the overview of the low-pressure casting machine is a use of air pressure principle to realize the important casting equipment for metal liquid casting. In order to ensure the safe, stable and efficient operation of the equipment, and to improve the quality and productivity of casting products, this operating procedure has been formulated. This procedure specifies in detail the operation, care and maintenance of the low-pressure casting machine, designed to ensure the safety of the operator and the normal operation of the equipment. Second, the content of the operation Third, the precautions This operating procedure is the latest operating requirements of the low-pressure casting machine, the operator should strictly comply with, to ensure the safety of the equipment, stable and efficient operation.

Low-pressure casting machine operating procedures

2024-08-05

I. EQUIPMENT INSPECTION 1. Carefully inspect all parts of the low pressure casting machine to make sure there is no damage or looseness. 2. Confirm the sufficiency of lubricating oil and grease and add or replace them in time. 3. Check whether the electrical equipment and wiring are normal to eliminate potential safety hazards. 2. OPERATING STEPS 1. Turn on the power switch of the low pressure casting machine, and adjust it to the working voltage. 2. Check the temperature controller to make sure the working temperature is Start the low-pressure casting machine to ensure the normal operation of all components, 4. Check the mold and mold surface finish, clean the mold of impurities and residues, 5. Coat the mold with a layer of grease to ensure that the product molding smoothly. 6. Pour the melted metal liquid into the low-pressure casting machine hopper, start the casting machine. 7. Control the low-pressure casting machine's working pressure and time, to ensure that the product molding ...

Low pressure casting process

2024-08-05

Low pressure casting is a method of forming castings by filling them with liquid metal under pressure. It is called low-pressure die casting because it uses very low pressure. The process flow (see Figure 1) is: in the sealed crucible (or sealed drill), into the dry compressed air, liquid metal 2 in the gas pressure, along the ascending tube 4 rise, through the gate 5 smooth into the cavity 8, keep the crucible recreational hydraulic pressure until the casting is completely solidified, and then relieve the hydraulic pressure, so that the open tube is not solidified liquid metal flow crucible collapsed, and then open the casting through the cylinder 12. The process specification of low pressure casting includes charging, pressurizing, preheating temperature, injection temperature, casting coating, etc. (1) Charging and pressurizing Lifting pressure refers to the pressure required when the level of the metal liquid rises to the mouth of the stream. The rise of the metal liquid in the ascending tube should be as slow as possible, in favor of the cavity gas...

Aluminum die casting mold design and manufacturing

2024-08-05

A, die casting molding technology overview A, die casting molding technology introduction pressure casting referred to as die casting, is the use of die casting machine pressure will alloy molten liquid at a certain speed filled with in accordance with certain parts structure and process requirements design and through the precision manufacturing of the mold cavity, and the alloy molten liquid to keep under a certain pressure, under the action of the mold cavity cooling solidification and molding of a kind of high-efficiency and high-efficiency precision casting Technology. B, die-casting molding technology characteristics and scope of application 1, die-casting molding technology features high pressure, high speed is die-casting liquid or semi-liquid metal filling molding process of the two main features, but also die-casting molding technology and other casting method is the most fundamental difference. &nbs...

Aluminum die casting mold acceptance criteria

2024-08-05

I. The purpose of developing standards 1. Reduce downtime caused by molds, production stoppages, improve labor productivity, reduce manufacturing costs. 2. Promote mold manufacturers to improve the level of mold manufacturing and quality, reduce its after-sales...

Aluminum die casting mold structure

2024-08-05

A, die casting mold foundation 1.die casting concept die casting: refers to the high temperature molten metal liquid in the state of high speed and high pressure under certain conditions to quickly fill the cavity, and in a certain pressure under the action of rapid cooling of the molding process. Die casting mold is an important process equipment in die casting production, it is extremely important to the production can be carried out smoothly, the quality of the castings play an extremely important role, it and die casting production process, production operation exists and mutual influence and mutual constraints, close relationship. Die casting mold determines the casting shape and size tolerance level; Its pouring system determines the molten metal filling condition; In the production process, control and regulation of die casting process heat balance; The strength of the mold limits the maximum limit of the pressure of the ejection ratio, affecting the production efficiency of die casting production. 2. The structure of die casting mold die casting mold is mainly by the fixed mold and moving mold...

Aluminum Die Casting Mold

2024-08-05

Aluminum die casting die refers to the tool used to manufacture aluminum alloy high die casting, usually by the die kernel, die seat, die core, cooling device, sliding device, ejector device and other components. The following is a detailed analysis of aluminum die casting die: a, classification aluminum die casting die and die casting machine can be divided into: Horizontal cold room die casting die: die casting machine die for horizontal placement of die casting room, direct contact with molten aluminum water. Horizontal hot chamber die casting mold: die casting machine mold for horizontal placement of die casting room and molten aluminum water separation. Vertical die casting machine mold: die casting machine mold for equipment standing, up and down the mold. Second, the principle of work in the die casting production process, die casting mold installed in the die casting machine, and die casting machine to form a whole. Through the pressure of the die casting machine, the metal liquid in high pressure, high speed filling the mold cavity, in the high pressure under the cold...

Aluminum oil sump

2024-08-05

What is an oil pan? The oil pan is located in the lower part of the engine's crankcase, also known as the lower crankcase. Used to seal the crankcase, collect the engine friction generated by the lubricating oil back to prevent outside dust impurities into the lubricating oil. Classification of the oil pan: common have these kinds of oil pan Plastic oil pan Plastic oil pan refers to the oil pan material for engineering plastics, using plastic injection mold processing technology manufacturing, this material is manufactured by the oil pan more thin and lightweight, design freedom is relatively high, relatively inexpensive, more convenient installation. Has a certain degree of toughness. However, the high temperature resistance and corrosion resistance of plastic oil pan is relatively poor, the life is relatively short, suitable for low working temperature, low frequency of use, the weight requirements of the environment. Aluminum alloy oil pan Aluminum alloy oil pan due to the use of aluminum...

Electric iron

2024-08-05

What is an electric iron? Iron is a tool for smoothing clothes and fabrics, it is one of the common household appliances in modern times, it utilizes an electric heating element to heat up the soleplate and smoothes out wrinkles on the fabric through high temperature and pressure, the iron is used to remove wrinkles on clothes products. How does an iron work? The heating material inside the iron, such as nickel-chromium alloy wire, generates heat when current is passed through the electric heating element. This heat is transferred to the soleplate, raising the temperature of the soleplate. The soleplate is usually made of metal, such as aluminum alloy iron, copper alloy iron, etc., because metal has good thermal conductivity, can quickly and evenly transfer heat. When the temperature of the soleplate rises to a certain level, the clothes are placed on the soleplate, and the heat of the soleplate is transferred to the clothes, making the fibers of the clothes soft from...

Semi-solid metal casting process

2024-08-03

1, Overview Since 1971, the Massachusetts Institute of Technology's D.B. Spencer and M.C. Flemings invented a stir casting (stir cast) a new process, that is, the use of rotating double barrel mechanical stirring method to prepare a Sr15% Pb rheological slurry since the semi-solid metal (SSM) casting process technology has experienced more than 20 years of research and development. The alloys prepared by stir casting are generally known as non-dendritic organization alloys or called Partially Solidified Casting Alloys (Partially Solidified Casting Alloys). Products using this technology have a strong vitality due to their high quality, high performance and high alloying characteristics. In addition to applications in military equipment, it has begun to focus mainly on key components for automobiles, for example, for automobile wheels, which can improve performance, reduce weight, and lower scrap rates. This ...