Die Casting - Page 4 - Ningbo Hexin specializes in low pressure casting, gravity casting, die casting mold manufacturing, aluminum casting factory

Equipment Showcase

2024-08-05

Hanger type shot blasting machine Tilting gravity casting machine Shunxing clamping machine Milling machine Low pressure casting machine Rocker arm drill z3050 Suzhou Qunzhi Machinery v9 machining center Suzhou Zhiqun Machinery CNC metal engraving

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...

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 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 alloy molten liquid to keep under a certain pressure, under the action of the mold cavity, in the mold cooled and solidified and molded a kind of high efficiency, high efficiency of the 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. &...

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...

Composition and design of aluminum die casting mold

2024-08-05

Aluminum die casting is a highly efficient manufacturing process commonly used for mass production of precision aluminum alloy castings. Compared with traditional casting methods, aluminum die casting molds can achieve higher production efficiency and finer casting dimensions. Aluminum die casting mold design and composition directly affects the quality of castings, production cycle and mold life, therefore, the design of a high-performance aluminum die casting mold is critical. Aluminum die casting die refers to the tool used to manufacture aluminum alloy high pressure castings, usually consists of 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: the main components of aluminum die casting die aluminum die casting die design key considerations aluminum die casting die classification aluminum die casting die and die casting machine can be divided into: Horizontal cold chamber die casting...

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, the use of injection mold processing technology manufacturing, this material is manufactured by the oil pan more lightweight and thin quality, 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 the 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...

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 ...

5 common defects and solutions such as casting shrinkage holes, surface roughness and lack of finish

2024-08-03

Porosity phenomenon (including bubbles, choke holes, air pockets) Causes: 1, mold preheating temperature is too low, liquid metal through the pouring system cools too quickly. 2、Bad mold exhaust design, poor gas discharge. 3, bad paint, poor exhaust, or even volatile or decomposition gas. 4, There are holes and pits on the surface of the mold cavity. After the liquid metal is injected, the gas expands rapidly and compresses the liquid metal, forming choking holes. 5、The surface of the mold cavity is rusted and not cleaned up. 6、Improper storage of raw materials (sand core), not preheated before use. 7、Bad deoxidizer, or insufficient dosage or improper operation. The following are short methods to prevent gas holes (bubbles, choke holes, air pockets): 1, within the appropriate range to control the pouring temperature, to avoid gas expansion is too high. 2、Mold preheating sufficiently, using good permeability, appropriate particle size...

High pressure casting Die casting machine tonnage selection

2024-08-03

These days a customer asked me how to choose the right die casting tonnage is not die casting tonnage the bigger the better, so write this article slightly explain the die casting mold tonnage selection. Picture high pressure casting is a kind of pressure casting, in the case of high speed and high pressure liquid through the pressure chamber, by the die casting machine hammer into the mold internal molding, die casting machine tonnage the larger the pressure is mainly reflected in the clamping force, and die casting hammer. So how to judge the die casting products need the size of the tonnage? How to calculate the high pressure die casting tonnage, here we mainly from four aspects to consider: 1, calibration die casting products clamping force What is clamping force? Clamping force refers to, high pressure die casting products in the casting process, the molten metal liquid with high pressure into the mold cavity will produce a hold up the force, this time high pressure die casting machine exerted to the mold of...

Classification of metal manufacturing processes

2024-08-03

Hot working includes casting, forging and welding. Cold working, also known as metal cutting process, including tool cutting process (which has turning process, drilling and boring process, planing, inserting, broaching, milling process, abrasive cutting process; the processing of gear teeth). The following are briefly introduced. (A) casting The casting process is to pour liquid metal into the mold, to be cooled to obtain a certain shape and sex of the casting. This is the method of molding metal in the liquid state. Casting can produce billet blanks of complex shapes, especially complex internal cavities, with unlimited size and weight. Both single-piece production, can also be mass production, the use of most of the material from a wide range of sources, low prices, but also available scrap and waste parts, so the cost is low. Castings and parts of the shape and size close to the processing allowance is small. Casting...

Ningbo Hexin Moulding & Plastic Co.

2024-08-03

Ningbo Hexin Molding Co., Ltd. in the era of rapid development of information, based on the development of science and technology, information technology. A small program was released on WeChat. As long as the WeChat search Ningbo Hexin, you can check Ningbo Hexin, which greatly facilitates new and old customers to recognize the development of Ningbo Hexin. The strategic direction of the current stage of development . Ningbo Hexin shows a variety of aluminum alloy products through WeChat applet. The range of Ningbo Hexin products and services process includes: Let customers intuitively understand the range of products produced by Ningbo Hexin: