Gravity Casting - High and low pressure casting, gravity casting, mold making, focus on aluminum alloy casting factory

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 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...

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...

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...