.gtr-container-prmc789 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; padding: 16px; line-height: 1.6; font-size: 14px; box-sizing: border-box; width: 100%; } .gtr-container-prmc789 p { margin-bottom: 1em; text-align: left !important; font-size: 14px; } .gtr-container-prmc789-heading { font-size: 18px; font-weight: bold; margin-top: 1.5em; margin-bottom: 0.8em; color: #0000FF; text-align: left; } .gtr-container-prmc789-highlight { font-weight: bold; color: #0000FF; } .gtr-container-prmc789 ul { list-style: none !important; padding-left: 20px; margin-bottom: 1em; margin-top: 0; } .gtr-container-prmc789 ul li { position: relative; padding-left: 15px; margin-bottom: 0.5em; text-align: left !important; font-size: 14px; list-style: none !important; } .gtr-container-prmc789 ul li::before { content: "•" !important; position: absolute !important; left: 0 !important; color: #0000FF; font-size: 14px; line-height: 1.6; } @media (min-width: 768px) { .gtr-container-prmc789 { padding: 24px 40px; } .gtr-container-prmc789 p, .gtr-container-prmc789-heading, .gtr-container-prmc789 ul { max-width: 960px; margin-left: auto; margin-right: auto; } .gtr-container-prmc789 ul { padding-left: 20px; } } Also known as permanent mold casting, it is a casting method in which liquid metal is poured into a metal mold to obtain a casting. The mold is made of metal and can be used repeatedly (hundreds to thousands of times), also known as permanent casting. Generally, metal molds are made of cast iron and cast steel. The inner cavity of the casting can be either a metal core or a sand core. There are many types of metal types, such as horizontal type, heavy straight type, and composite type. The vertical parting is convenient for opening the gate and taking out the castings, the horizontal parting is mostly used to produce thin-walled wheel-shaped castings; the upper part of the composite parting is formed by the two parts of the vertical parting using hinges, and the lower part It is a fixed horizontal bottom plate, mainly used in the casting of more complex castings. Advantage: It has good reusability and can be used for "one mold and multiple castings", saving modeling materials and man-hours. Due to the strong cooling ability of the metal mold to the casting, the structure of the casting is dense and the mechanical properties are high. The dimensional accuracy of the casting is high, the tolerance grade is IT12 ~ IT14; the surface roughness is low, and Ra is 6.3m. Metal mold casting does not use sand or less sand, which improves working conditions. Disadvantages and limitations: Metal molds have high manufacturing costs, long cycles, and strict process requirements. They are not suitable for the production of single-piece small-lot castings. They are mainly suitable for large-scale production of non-ferrous alloy castings, such as aluminum pistons for aircraft, automobiles, internal combustion engines, motorcycles, Cylinder blocks, cylinder heads, oil pump casing and copper alloy bearing bush, bushing, etc. For black alloy castings, it is also limited to small and medium-sized castings with simpler shapes.

.gtr-container-d9e2f1 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 15px; box-sizing: border-box; max-width: 100%; overflow-x: hidden; } .gtr-container-d9e2f1-paragraph { font-size: 14px; text-align: left; margin-bottom: 1em; word-break: normal; overflow-wrap: normal; } .gtr-container-d9e2f1-heading { font-size: 18px; font-weight: bold; color: #0000FF; margin-top: 1.5em; margin-bottom: 0.8em; text-align: left; } .gtr-container-d9e2f1-list { list-style: none !important; padding: 0; margin: 0; } .gtr-container-d9e2f1-list li { position: relative; padding-left: 20px; margin-bottom: 0.5em; font-size: 14px; text-align: left; word-break: normal; overflow-wrap: normal; } .gtr-container-d9e2f1-list li::before { content: "•" !important; position: absolute !important; left: 0 !important; color: #0000FF; font-size: 1.2em; line-height: 1; } @media (min-width: 768px) { .gtr-container-d9e2f1 { padding: 25px; max-width: 960px; margin: 0 auto; } .gtr-container-d9e2f1-paragraph, .gtr-container-d9e2f1-list li { font-size: 14px; } } The principle of the die casting process is to use high pressure to press the metal liquid into a precision metal mold cavity at high speed, and the metal liquid is cooled and solidified under pressure to form a casting. Cold and hot chamber die castings are two basic ways of die casting process. In the cold chamber die casting, the metal liquid is poured into the pressure chamber by a manual or automatic pouring device, and then the injection punch is advanced to hydraulically press the metal into the cavity. In the hot-chamber die casting process, the pressure chamber is perpendicular to the crucible, and the metal liquid automatically flows into the pressure chamber through the feeding port on the pressure chamber. The injection punch moves downwards, pushing the molten metal through the gooseneck into the cavity. After the molten metal solidifies, the die-casting mold is opened, and the casting is taken out to complete a die-casting cycle. Advantage: Product quality is good. The castings have high dimensional accuracy, which is generally equivalent to 6 ~ 7, or even up to 4; the surface finish is good, generally equivalent to 5 ~ 8; the strength and hardness are higher, and the strength is generally 25 ~ 30% higher than that of sand casting, but the extension The rate is reduced by about 70%; the size is stable and the interchangeability is good; it can die-cast thin-walled complex castings; and the production efficiency is high. The machine can do die-cast 3,000 to 7000 times every eight hours on average. The life of the die-casting mold is long. One pair of die-casting molds and die-casting bell alloys have a service life of hundreds of thousands of times, even millions of times. It is easy to realize mechanization and automation. Excellent economic results. Due to the precise dimensions of the die-casting parts, the surface is smooth and smooth. Generally no longer use mechanical processing and use directly, or the processing volume is small, so it not only improves the metal utilization rate, but also reduces a large number of processing equipment and man-hours; the price of castings is easy; combined die casting can be used for other metal or non-metal materials. Save both assembly man-hours and metal. Disadvantages and limitations: During die casting, due to the high speed of the liquid metal filling cavity and the unstable flow state, the general die casting method is easy to produce pores and cannot be heat treated. For intricate concave castings, die casting is more difficult; high melting point alloys (such as copper, black Metal), the life of the die-casting mold is low; it is not suitable for small batch production, mainly due to the high cost of die-casting mold manufacturing, high production efficiency of the die-casting machine, and small batch production is not economical.

Stamping dies are essential tools in the manufacturing industry, used to shape, cut, and form sheet metal into precise components. Depending on the complexity and requirements of a project, manufacturers typically choose between three main types of stamping dies: progressive, compound, and transfer dies. Each type has unique capabilities, costs, and maintenance needs. In this blog, we will explore these differences and highlight how Luyao Metals takes a distinct approach to stamping, setting us apart from other industry players. Transfer dies are used for large or intricate parts that require multiple operations. Unlike progressive dies, transfer dies move the workpiece independently between stations using mechanical transfer systems. How It Works: ·         A blank is cut and then transferred through various stations for forming, bending, or other operations. ·         Each station is independent, allowing for complex shapes and larger parts. Cost of Design and Production: Transfer dies involve higher tooling and setup costs due to their complex transfer mechanisms. They are best suited for medium to high production runs, where the versatility and capability to handle complex parts justify the investment.

Stamping dies are essential tools in the manufacturing industry, used to shape, cut, and form sheet metal into precise components. Depending on the complexity and requirements of a project, manufacturers typically choose between three main types of stamping dies: progressive, compound, and transfer dies. Each type has unique capabilities, costs, and maintenance needs. In this blog, we will explore these differences and highlight how Luyao Metals takes a distinct approach to stamping, setting us apart from other industry players. Compound dies perform multiple operations, such as cutting and punching, in a single stroke of the press. This type of die is commonly used for simple, flat parts. How It Works: ·         The entire operation is completed in one press stroke. ·         Typically, compound dies are used for operations requiring high precision in a single plane. Cost of Design and Production: Compound dies are generally less expensive to design and produce compared to progressive dies. The simplicity of the die reduces upfront costs, but the process is less suitable for complex or high-volume projects.

Stamping dies are essential tools in the manufacturing industry, used to shape, cut, and form sheet metal into precise components. Depending on the complexity and requirements of a project, manufacturers typically choose between three main types of stamping dies: progressive, compound, and transfer dies. Each type has unique capabilities, costs, and maintenance needs. In this blog, we will explore these differences and highlight how Luyao Metals takes a distinct approach to stamping, setting us apart from other industry players. Progressive dies are designed for high-volume production of complex parts. This type of die operates through a series of sequential stations, each performing a specific operation on the workpiece as it moves through the press. How It Works: ·         A strip of metal feeds into the die and moves through various stations. ·         At each station, a different operation is performed, such as cutting, bending, or punching. ·         By the end of the process, a completed part is separated from the strip. Cost of Design and Production Progressive dies are known for their higher upfront design and tooling costs. The complex nature of the die requires meticulous planning and precision engineering. However, the cost per part decreases significantly with large production runs, making this option highly cost-effective for long-term projects.

Metal Casting is a process of smelting metal material into a liquid that meets certain requirements and pouring it into a mould. After cooling and solidifying and finishing, a casting with a predetermined shape, size and performance is obtained. Because the casting blank is almost formed, the purpose of avoiding machining or small amount of machining reduces the cost and time to a certain extent. Casting is one of the basic processes of modern machinery manufacturing industry. One common used process is Sand casting. Sand Casting The basic raw materials for making sand moulds are foundry sand and sand binder. The most commonly used foundry sand is siliceous sand. When the high temperature performance of silica sand cannot meet the requirements for use, special sands such as zircon sand, chromite sand, and corundum sand are used. The most widely used sand binder is clay, and various dry or semi-dry oils, water-soluble silicates or phosphates, and various synthetic resins can be used as the sand binder. The outer sand mold used in sand casting is divided into three types: clay wet sand mold, clay dry sand mold, and chemically hardened sand mold according to the binder used in the molding sand and the way to build strength. Advantage Clay is rich in resources and cheap. Most of the used clay wet sand can be recovered and reused after proper treatment; the cycle for making molds is short and the work efficiency is high; the mixed sand can be used for a long time; Small pieces, large pieces, simple pieces, complex pieces, single pieces, large quantities can be used;