How to Choose hardware mold?
Mar. 31, 2025
Three requirements for selecting hardware mold manufacturing
With the connection development of China's hardware mold production, the import of high-grade mold steel continues to rise. It is estimated that the import of mold steel will increase significantly, especially the style of mold steel imported in a short time. China's mold steel imports mainly come from Japan, Germany, Sweden, Austria, South Korea and other countries. Die steel is based on three series: hot work die steel, rubber die steel and die-casting die steel. China's general die steel used to be redundant, but there is a big gap between * *, precision and long-life high-quality die steel and foreign countries, mainly in the purity index.
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When selecting the material of hardware mold, experts suggest that we should focus on whether it can meet the following three requirements:
（1） The mold meets the economic requirements
When selecting materials for molds, we must consider the criterion of economy and reduce the old cost of production as much as possible. Therefore, under the condition of meeting the application performance, start to select low-cost materials. If you can use carbon steel, you don't need alloy steel, and if you can use domestic materials, you don't need imported materials. In addition, the production and supply environment of environmental trends should also be considered when selecting materials. The selected steel grades should be small, dense and easy to purchase.
（2） The mold meets the requirements of working conditions
1. Strength and toughness: the working conditions of molds are mostly very bad, and some are often subjected to large impact load, resulting in brittle fracture. In order to prevent sudden brittle fracture of die parts during operation, the die should have high strength and toughness. The toughness of the die mainly depends on the carbon content, grain size and structure of the material.
2. Fatigue fracture performance: fatigue fracture is often caused by the permanent benefit of cyclic stress during the working process of the die. Its forms include small energy repeated strike fatigue fracture, tensile fatigue fracture, contact fatigue fracture and bending fatigue fracture. The fracture performance of the die mainly depends on its strength, toughness, hardness and the content of Assimilates in the material.
3. High temperature performance: when the working temperature of the die is high, the hardness and strength will decrease, resulting in early wear or plastic deformation of the die. Therefore, the die material should have high tempering stability to ensure that the die has high hardness and strength at working temperature.
4. Cold and hot fatigue resistance: some molds are heated and cooled repeatedly during the working process, which makes the surface of the cavity subject to tension and pressure strain stress, causes surface cracking and spalling, increases the conflict force, hinders plastic deformation and reduces the dimensional accuracy, resulting in invalid molds. Cold and hot fatigue is one of the main forms of ineffective hot working die. This kind of die should have high resistance to cold and hot fatigue.
5. Corrosion resistance: when some molds such as plastic molds are working, due to the presence of chlorine, fluorine and other elements in the plastic, HCI, HF and other strong corrosive gases are released after heating, which corrodes the surface of the mold cavity, increases the surface roughness and aggravates the wear.
6. Wear resistance: when the blank is plastically denatured in the mold cavity, it moves and slides along the cavity surface, resulting in a violent conflict between the cavity surface and the blank, resulting in the invalidity of the mold due to wear. Therefore, the wear resistance of materials is one of the very basic and important properties of molds.
How to Choose the Right Hardware for Your Software
bps: How fast the modem can transmit and receive data. At slow rates, modems are measured in terms of baud rates. At higher speeds, modems are measured in terms of bits per second (bps).
Bus: A collection of wires through which data is transmitted from one part of a computer to another. When used in reference to personal computers, the term bus usually refers to internal bus.
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CD-ROM (Compact Disc-Read-Only Memory): A type of optical disk capable of storing large amounts of data - up to 1 GB, although the most common size is 650 MB. A single CD-ROM has the storage capacity of 700 floppy disks.
GB (Gigabyte): 2 to the 30th power (1,073,741,824) bytes. One gigabyte is equal to 1,024 megabytes.
Graphics Card: Also known as a video adapter. A board that plugs into a personal computer to give it display capabilities. Many different types of video adapters are available for PCs. Each adapter offers several different video modes. The two basic categories of video modes are text and graphics. Modern video adapters contain memory, so that the computer's RAM is not used for storing displays. In addition, most adapters have their own graphics coprocessor for performing graphics calculations. These adapters are often called graphics accelerators. Video adapters also are called video cards, video boards, video display boards, graphics cards and graphics adapters.
Hard Disk Drive: The mechanism that reads and writes data on a hard disk. There are several interface standards for passing data between a hard disk and a computer. The most common are IDE and SCSI.
MB (Megabyte): When used to describe data storage, 1,048,576 (2 to the 20th power) bytes.
MHz (Megahertz): One MHz represents one million cycles per second. The speed of microprocessors, called the clock speed, is measured in megahertz. A microprocessor that runs at 200 MHz executes 200 million cycles per second. Each computer instruction requires a fixed number of cycles, so the clock speed determines how many instructions per second the microprocessor can execute.
Modem: A device or program that enables a computer to transmit data over lines. Computer information is stored digitally, whereas information transmitted over lines is transmitted in the form of analog waves. A modem converts between these two forms.
Operating System: The most important program that runs on a computer. Every general-purpose computer must have an operating system to run other programs. Operating systems recognize input from the keyboard, send output to the display screen, keep track of files and directories on the disk, and control peripheral devices such as disk drives and printers. Operating systems provide a software platform on top of which other programs - called application programs - can run. The application programs must be written to run on top of a particular operating system.
PCI (Peripheral Component Interconnect): A local bus standard developed by Intel Corporation. Most modern PCs include a PCI bus in addition to a more general ISA expansion bus. Many analysts, however, believe that PCI will eventually supplant ISA entirely. PCI also is used on newer versions of the Macintosh computer. Processor: A silicon chip that contains a CPU. The terms microprocessor and CPU are used interchangeably. At the heart of all personal computers and most workstations sits a microprocessor. Microprocessors also control the logic of almost all digital devices. Three basic characteristics differentiate microprocessors: instruction set, bandwidth and clock speed.
RAM (Random Access Memory): A type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory found in computers and other devices, such as printers.
SCSI (Small Computer System Interface): SCSI is a parallel interface standard used by Macintosh computers, PCs, and many UNIX systems for attaching peripheral devices to computers. SCSI interfaces provide for faster data transmission rates (up to 80 MB per second) than standard serial and parallel ports. In addition, you can attach many devices to a single SCSI port. Although SCSI is an ANSI standard, there are many variations of it, so two SCSI interfaces may be incompatible. Many high-end new PCs come with SCSI built in. The lack of a single SCSI standard means that some devices may not work with some SCSI boards.
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