English
Injection Molding Mold Maker is a company or individual specialized in the design, manufacturing, and processing of injection molding molds. Injection molding molds are key tools in the production process of plastic products, and their quality directly affects the accuracy, performance, and production efficiency of the products. The following will provide a detailed introduction to the core business of injection molding mold manufacturers from two aspects: mold manufacturing technology and surface treatment technology.
1、 Manufacturing process of injection molding molds
The manufacturing of injection molding molds is a complex process that involves multiple stages and techniques. The following are the main manufacturing processes:
CNC injection mold design
CAD/CAM technology: Mold design typically employs computer-aided design (CAD) and computer-aided manufacturing (CAM) techniques. Designers use professional CAD software (such as SolidWorks, UG, Pro/E, etc.) for 3D modeling to ensure that the mold structure is reasonable and meets product requirements.
Mold flow analysis: Using mold flow analysis software (such as Moldflow) to simulate the flow behavior of plastic melt in the mold, optimize the gate position, runner design, and cooling system, reduce defects, and improve product quality.
Material selection
Mold steel: The selection of mold materials is crucial, and commonly used mold steel ladles include P20, 718, H13, NAK80, etc. These materials have good strength, hardness, wear resistance, and corrosion resistance, suitable for the production needs of different plastic products.
Heat treatment: In order to improve the hardness and wear resistance of the mold, it is usually necessary to perform heat treatment on the mold, such as quenching, tempering, nitriding, etc.
CNC milling: using CNC milling machines to perform rough and precision machining on key parts such as mold cavities and cores, ensuring dimensional accuracy and surface quality.
Electric discharge machining (EDM): For mold parts with complex shapes that are difficult to machine, EDM technology is used to remove materials through discharge corrosion between electrodes and workpieces, achieving high-precision machining.
Wire cutting machining (WEDM): Using thin metal wires as electrodes, cutting workpieces through pulse discharge is suitable for machining high-precision, complex shaped mold parts.
Assembly and Debugging
Mold assembly: Assemble the processed mold parts, including the cavity, core, sprue sleeve, ejector mechanism, etc., to ensure that each component fits tightly and moves flexibly.
Trial molding and debugging: Test the mold on the injection molding machine, adjust process parameters, check product quality, make necessary modifications and optimizations to the mold until it meets production requirements.
2、 Surface treatment technology for injection molding molds
In order to improve the wear resistance, corrosion resistance, demolding performance, and service life of the mold, special treatment of the mold surface is usually required. The following are common surface treatment techniques:
polishing
Purpose: To improve the surface smoothness of molds, reduce surface defects of plastic products, and enhance appearance quality.
Method: Use sandpaper, grinding paste, and polishing wheels of different particle sizes to gradually polish and polish the surface of the mold until the desired surface roughness is achieved.
Nitriding treatment
Purpose: To improve the hardness and wear resistance of the mold surface, and extend the service life of the mold.
Method: Place the mold in a nitriding furnace and introduce ammonia gas at high temperature to allow nitrogen atoms to penetrate the surface of the mold, forming a nitriding layer.
chrome plating
Purpose: To improve the hardness, wear resistance, and corrosion resistance of the mold surface, while also enhancing the demolding performance.
Method: Through electroplating process, a layer of chromium metal is deposited on the surface of the mold, with a thickness generally ranging from 0.01-0.03mm.
PVD (Physical Vapor Deposition) coating
Purpose: To form a hard, wear-resistant, and corrosion-resistant coating on the surface of the mold to improve its overall performance.
Method: Using physical vapor deposition technology, metal or compound is evaporated onto the surface of the mold under vacuum conditions to form coatings such as TiN, TiCN, CrN, etc.
TD treatment (thermal diffusion method carbide coating treatment)
Purpose: To form a high hardness carbide coating on the surface of the mold, significantly improving its wear resistance and corrosion resistance.
Method: Place the mold in a salt bath containing carbide forming elements and perform thermal diffusion treatment at high temperature to form a coating of carbides on the surface of the mold.
sand blasting
Purpose: To improve the roughness of the mold surface, enhance the adhesion of plastic products, or for decorative purposes on the mold surface.
Method: Use compressed air to spray sand particles onto the surface of the mold, forming a uniform rough surface.
III CNC Machining for Injection Mold Making
The core competitiveness of injection molding mold manufacturers is reflected in the following aspects:
Technical strength: With a professional design team and advanced processing equipment, we can provide high-quality mold design and manufacturing services.
Experience accumulation: Rich experience in mold manufacturing, able to quickly solve problems encountered in the production process, optimize mold structure, and improve production efficiency.
Innovation capability: Continuously introducing new technologies and processes, developing new mold materials and surface treatment technologies to meet the diverse needs of customers.
Quality control: Establish a sound quality management system, strictly control the quality throughout the entire process from raw material procurement, processing and manufacturing to finished product inspection, and ensure that the molds meet customer requirements.
Service level: Provide comprehensive pre-sales, in sales, and after-sales services, respond to customer needs in a timely manner, solve customer problems, and establish long-term stable cooperative relationships.
4 Precision Injection Mold Maker
With the rapid development of the plastic products industry, injection molding mold manufacturers are also facing new opportunities and challenges. The future development trends include:
Intelligent manufacturing: introduce intelligent manufacturing technologies, such as industrial Internet, big data, artificial intelligence, etc., to realize the automation, digitalization and intellectualization of mold manufacturing process, and improve production efficiency and product quality.
Green Manufacturing: Emphasize environmental protection and sustainable development, adopt environmentally friendly mold materials and surface treatment technologies, reduce pollution and energy consumption in the production process, and promote the green transformation of the mold manufacturing industry.
Customized services: Based on the personalized needs of customers, we provide customized mold design and manufacturing services to meet the production needs of different Industries and products.
International development: Actively participate in international competition, expand overseas markets, introduce advanced foreign technology and management experience, and enhance the international competitiveness of enterprises.
Injection molding mold manufacturers play a crucial role in the production of plastic products. Through continuous technological innovation and service improvement, injection molding mold manufacturers will be able to better meet customer needs and promote the sustainable development of the plastic products industry.
