Blog

Low pressure casting Can realize a high degree of mechanization and automation, improve productivity (10 ~ 15 type / h), it can also reduce many adverse human factors in the production process, improve the yield rate, greatly reducing the labor intensity of workers. However, the quality of low pressure casting by the process plan, process parameters, mold structure and manual operation and other factors, any design unreasonable or improper operation of the link may lead to low pressure casting defects. The generation of aluminum wheel cracks is an important factor that affects the production cost and productivity of enterprises. Therefore, it is especially important to discuss the causes of cracks in low pressure casting aluminum wheels. Next, I will discuss with you in China low pressure casting plant casting aluminum alloy automobile wheel hub crack formation and elimination measures. What is low pressure casting wheel? Low pressure casting wheels are made by...

The reliability of aluminum castings lies in the strict casting quality verification process. Through a set of casting inspection methods, quality management. Not only to ensure that each casting meets the design standards, but also to enhance its performance and long-term stability. Aluminum casting inspection methods Hexin adopts a series of precise aluminum casting inspection methods, each casting can meet the quality requirements. Each aluminum casting is rigorously inspected to meet predetermined standards for performance, dimensions and chemical composition. 1. Radiography and Visual Inspection Quality control of castings uses visual inspection techniques to ensure that castings are free of defects such as cracks, porosity, voids, etc. Each casting is inspected in detail to ensure that there is no distortion or bending. Once the inspection is complete, the casting is compared to the quality control program and process requirements. Finally, all inspection results are...

Gravity casting is in the casting process, the first solidification of the metal liquid due to thermal expansion and contraction volume contraction, need to rely on the upper part of the solidified metal liquid gravity to replenish, to complete the effect of shrinkage. Gravity casting solidification mode for the order of solidification, is the whole part in the solidification of the solidification in accordance with a certain sequence of successive solidification, relatively backward solidification position can be complementary shrinkage of the relative front of the solidification position, so that the final casting defects are concentrated in the last cooling parts (risers, gates position), to get qualified production castings. Gravity casting aluminum alloy wheel castings solidification sequence: rim - spokes - center hub (bevel) - manifold cone - - gate (riser) casting -Gate (riser) Casting process design parameters include machining allowances, process allowances (risers and other remedial shrinkage locations), metal shrinkage (shrinkage coefficients), and draw slopes, cooling system...

Die casting structure design Die casting structure design is the first step of die casting work. The reasonableness of the design and process adaptability will affect the smooth progress of the subsequent work, such as parting surface selection, the opening of the inner gate, push out the arrangement of the mechanism, the mold structure and manufacturing difficulty, alloy solidification shrinkage law, casting precision guarantee, the type of defects, etc., will be to the premise of the die casting itself craftsmanship of the advantages and disadvantages of the die casting. 1, die casting parts design considerations (1), the design of die casting involves four aspects: a, that is, pressure casting on the shape and structure of the part requirements; b, die casting process performance; c, die casting dimensional accuracy and surface requirements; d, die casting parting surface determination; Die casting parts design is an important part of die casting production technology, the design must consider the following issues: mold parting...

CNC machining allowance confirmation What is CNC machining allowance? 1. refers to the machining thickness reserved for processing the required products, after removing the reserved thickness can be obtained to meet the requirements of the size, shape and positional accuracy of the workpiece. 2. The size of the machining allowance directly affects the machining efficiency and machining quality, so the reasonable determination of the machining allowance is an important part of CNC machine tool processing. CNC machining allowance factors: workpiece material workpiece material hardness, strength, toughness and other physical properties of the size of the machining allowance has a greater impact. Tool performance Tool sharpness, wear resistance, rigidity and other properties will affect the determination of the machining allowance. Machine accuracy The positioning accuracy of the machine tool, repeat positioning accuracy, drive system stability, etc. will affect the determination of the machining allowance. Machining process Different machining processes (such as rough...

Casting aluminum alloy refers to the aluminum by adding various metal elements, through different different metal elements will have different properties of aluminum alloy different countries usually have different casting aluminum alloy, Hershey Xin engineers will be sorted out the following for the more common casting aluminum alloy, the comparison of each country's grades: the main features and uses of each brand of aluminum alloy ZL101 composition is simple, easy to melt casting, good air tightness, good welding and cutting performance, but the mechanical properties are general. Melting casting, good airtightness, welding and cutting performance is good, but the mechanical properties in general. Suitable for casting thin-walled, large area, complex shape, strength requirements are not high parts, such as pump shells, gear boxes, instrument shells. Mainly sand and metal casting. ZL101A in ZL101 based on adding trace Ti, grain refinement, strengthen the organization, the comprehensive performance of ZL101, ZL102, corrosion resistance ...

Ningbo Hexin set up a casting design WeChat official account As enterprises now pay more and more attention to the development of social media, Ningbo Hexin's engineers, in order to facilitate the majority of customers through the WeChat more quickly accept the casting industry's cutting-edge information, and hereby set up a casting design of the public number. The significance of the establishment of the casting public number casting public number content 1.timely release of industry news will be remembered as the release of information on the implementation of the aluminum alloy casting industry dynamics, market dynamics, technological advances, etc., so that readers to maintain a keen sense of the industry. 2.Publish industry technical articles Share aluminum alloy casting process in a variety of process articles, including aluminum alloy die casting mold manufacturing, gravity mold manufacturing, product surface treatment. Casting design content 1, the casting process type of analysis (including low pressure casting, gravity ...

In manufacturing, casting is one of the key technologies used to produce components. Whether for automobiles, appliances, or industrial machinery, the casting process provides a robust and reliable solution. Die casting and sand casting are the two most common casting methods, and they differ significantly in many ways. Choosing the right casting process will have a direct impact on product cost, accuracy, productivity and material suitability. In this article, we will introduce these two casting process, and help you make the best choice for your project. Die casting and sand casting: process introduction 1. what is die casting? Die casting is a casting process that injects molten metal into a precision mold cavity through high pressure. It is commonly used in aluminum, zinc, copper, magnesium and other alloys casting, especially suitable for mass production of complex shapes, precision...

Preface Aluminum alloy, as an ideal material, has been more and more widely used in automobile manufacturing. Aluminum alloy die casting technology has become an indispensable manufacturing technology in the automotive industry due to its advantages of high precision, high strength and high efficiency. It is expected that by 2025, the market share of aluminum alloy die casting in the automotive industry will continue to grow, especially in the field of electric vehicles and high-performance vehicles, aluminum alloy die casting will play an increasingly important role. This article will delve into the application of aluminum alloy die casting in the automotive industry, analyze why aluminum die casting has become a widely used process in automotive manufacturing, and explain its specific application in automotive parts and components, to help you understand how customized aluminum die casting can contribute to the innovation and development of the automotive industry. History The aluminum die casting process originated in the early 20th century and was rapidly applied...

What is low pressure die casting? Aluminum low pressure die casting (LPDC) is to make the liquid metal under pressure to complete the filling cavity and solidification process two get castings of a casting method. Due to the existence of a certain pressure but far lower than the pressure of high pressure die casting (the highest pressure is only for high pressure die casting 1%), low pressure die casting pressure range in (20 ~ 60kPa), with its role in the pressure of small speed is slow, but also be able to manufacture a more complex internal hollow products (hollow part of the need for the sand core subsequent to the removal of the so-called low-pressure sand casting), and the principle of its role is more close to the aluminum Casting, so it is also called aluminum low pressure casting. Low-pressure die-casting process: in the impermeable crucible, through the pipeline into the compressed dry gas, molten aluminum in the role of gas pressure, along the rise of the liquid tube (crucible in the middle of the...

I am Ningbo He Xin dry more than 20 years old CNC, from the apprentice to touch the iron chips to take the apprentice to adjust the five-axis, the hand of the parts less than hundreds of thousands of pieces. Today with the gang nagging CNC machining those doorways, guaranteed that you can listen to less detours! CNC machine tools in the end where strong? In the early years we do manual milling machine, do 10 pieces a day are difficult. Now with five-axis linkage, complex surfaces of the aviation blade can be 50 pieces a day! Precision is dry from millimeter level to hairline thickness (± 0.01mm), the last time to German customers to do precision bushings, three-coordinate test report out, foreigners thumbs up. What is in the belly of the machine tool? Teacher's unique secret headache problem soil solution serious program thin-walled parts deformation pad kraft shock-absorbing segmented processing + thermal stress simulation deep hole drilling bias first play the center hole and then change the drill gun...

In modern manufacturing, the die-casting process is regarded as an important means of manufacturing precision metal parts. It injects molten metal into precision molds at high pressure, enabling the production of complex shaped metal parts, which are widely used in automotive, electronics and other fields, supporting the technological development of several leading industries. This article will provide an in-depth analysis of the core processes, material selection and applications of the die casting process, and how this process can achieve innovation and excellence in manufacturing. What is die casting? Die casting is a highly efficient and precise method of casting metal, utilizing reusable molds to produce complex shaped metal parts. Unlike traditional casting processes, die casting injects molten metal into a mold under high pressure, making it particularly well-suited for high-volume production and providing high precision, repeatability, and excellent surface finishes. The die casting process was originally...

First, the operation of the overview of the low-pressure casting machine is a use of air pressure principle to realize the important casting equipment for metal liquid casting. In order to ensure the safe, stable and efficient operation of the equipment, and to improve the quality and productivity of casting products, this operating procedure has been formulated. This procedure specifies in detail the operation, care and maintenance of the low-pressure casting machine, designed to ensure the safety of the operator and the normal operation of the equipment. II. OPERATING CONTENTS 1. Preparation 2. Heating and melting the metal 3. Setting the injection parameters 4. Low-pressure injection 5. Cooling and curing 6. Venting and dross removal 7. Ejecting the casting 8. Post-processing 9. Inspection and maintenance III. Precautions Controlling the temperature of the molten metal Reasonable setting of the injection pressure and speed Optimization of the cooling system Periodic cleaning and checking of the molds Technical Requirements for Operators This operating procedure...

Low pressure casting (LPDC for short) is a casting method in which molten metal is injected into a mold cavity at low pressure. Compared to high-pressure casting, low-pressure casting requires a lower pressure, usually between 0.1 and 0.6 MPa. This method is usually used for casting large or complex shapes of aluminum alloys, magnesium alloys and other light metal alloy parts, with better casting quality and higher production efficiency. Low-pressure casting equipment is the key to this process, and consists of several systems and components that ensure that castings are produced efficiently and accurately. Low-pressure casting (LPC) equipment is equipment for the production of aluminum alloy low-pressure casting products, which are usually used in the batch product production and manufacturing industries: such as aluminum alloy low-pressure casting automotive wheel production, steering knuckle production, automotive gearboxes, safety and explosion-proof housings, and automotive gearbox production....

What is high pressure die casting? High pressure casting principle: high pressure die casting (HPDC) refers to a production of metal products casting process, the principle of the process is to melt the metal solution at high temperature through the hopper will be melted metal liquid poured into the die casting machine injection pipeline, in the piston or plunger in the hydraulic pressure or pressurized gas push forward. Make the melted metal liquid filled die casting mold cavity, under the action of pressure forming and solidification and obtain castings, then die casting machine in the role of the cylinder to open the high-pressure die casting mold, aluminum die casting parts out, this process is called high-pressure die casting. The following diagram die casting machine production moving picture shown: high pressure die casting process characteristics high pressure die casting advantages and disadvantages: high pressure die casting advantages: 1, casting high dimensional accuracy, surface finish is good, generally equivalent to 5 ~ 8. 2, high strength and hardness, strength...

The three elements of die casting die casting machine, die casting alloy and die casting mold is the three elements of die casting production, one cannot be missing. The so-called die-casting process is the three elements organically and comprehensively, so that it can be stable rhythmically and efficiently produce the appearance, good internal quality, size in line with the drawings or agreement requirements of the castings. Company inspection standards 1, controlled information: drawings, quality control table; 2, the national standard, the standard (JIS die casting standard); 3, customer limit samples die casting size is prone to changes in the parts: 1, slider 2, core 3, the size of the parting surface, 4, the top rod (the company's internal most economical guidelines, special requirements exceptions) inside the surface of the top rod relative to the casting body can be raised or concave 0.30MM inside and outside surface The top bar (polishable part) can be raised or recessed by 0.30mm relative to the casting body.

Classification of Aluminum Alloys Classification of Cooked Aluminum (a)Classification by Alloying Elements1.×××× indicates pure aluminum system of 99.0% or more purity of aluminum parts and panels 85/KG2.××× indicates aluminum-copper alloys3.×××× indicates aluminum-manganese alloys4.××× indicates aluminum-silicon alloys5.××× indicates aluminum-magnesium alloys (imported from Switzerland)6.××× indicates aluminum-magnesium-silicon alloys T5 6063 60617.×××× indicates aluminum-zinc-magnesium alloys8.××× indicates alloys of systems other than those mentioned above9.××× indicates alternate classification number (b) Classification by strengthening mechanism1.Strain-hardening aluminum alloys: 1××××, 3××××, 4××××, 5××××2.Heat-treatable strengthened aluminum alloys: 2×××, 6××××, 7××× Classification of Cast Aluminum Alloys Al (Minimum Al content) 99.0% or more)1 × × × × Al-Cu alloy2 × × × × Al-Si alloy Containing Cu and Mg or Mg3 × × × × Al-Si alloy3 ××-×Al-Mg alloy4 ××...

What is differential pressure casting? Differential pressure casting (also known as counterpressure casting), is the liquid metal in the differential pressure, filled to a certain pressure in advance of the casting, crystallization, solidification and obtain castings of a process. It is a combination of two processes: low-pressure casting and crystallization and solidification under pressure. The process can be based on the shape of the casting, process requirements and casting characteristics, adjust the pressure in the cavity, so that the liquid metal flow into the casting under control, and in the casting does not change the state of the casting force conditions, so that the casting solidified under higher pressure, the production of other forming methods difficult to pour complex, thin-walled, whole aluminum castings, to solve the casting casting technology in a major key. The working principle of differential pressure casting: A. Inflatable B. Pressurization method C. Decompression method The casting is placed in the upper pressure cylinder, the crucible furnace is placed in the lower pressure...

What is a casting crucible? A crucible is a container for metals with high melting points. (Gold 1064℃, silver 962℃, copper 1083.4℃, cast iron 1200℃, iron 1535℃, aluminum 660℃.) Types of casting crucibles: What are casting crucibles made of: Casting crucibles are mainly categorized by shape: Round crucible: the most common shape, suitable for most melting needs. Square or Rectangular Crucible : Designed for the specific requirements of the metal, easy to handle and melt specific shapes of metal. Special shapes of crucibles: such as V-type, U-type, etc., which are used for specific melting processes or to meet special operating requirements. Crucible Furnace Operation and Maintenance Regulations: Before use, you must be familiar with the principle, performance specifications and use of the equipment. Before work: After work: Maintenance and maintenance procedures: Casting crucible Note: Common...

What are LED lights? LED (Light Emitting Diode) light is a light emitting diode, an electronic device that converts electrical energy into light energy. How LED Lights Work LED lights work on the principle of light emission based on semiconductor materials. When a current is passed through a PN junction, forward injected electrons and holes located in the active layer of the PN junction compound to release energy. This energy is emitted in the form of light. In semiconductors, they release excess energy through carrier complexes, resulting in the emission of photons that directly emit red, yellow, blue, and green light. Based on this, any color of light can be emitted by adding phosphors using the trichromatic principle. Depending on the material and material structure, the color, brightness and power of LED light may vary. Commonly used in wall lights, street lights and other fields...

In the day-to-day use of confidence and electric vehicles, performance is a key decision in choosing whether integrated wheels (integrated wheels) or spoked wheels are right for the vehicle's ride. This article will describe the benefits and features of two different wheels. Integrated Wheel Spoke Wheel Die-cast Integrated Wheel "Integrated Wheel" refers to a wheel consisting of a hub, rim, and spokes called an integrated wheel, " Die-casting" refers to the aluminum alloy die-casting process, and "Die-cast Integrated Wheel" refers to the high pressure die casting mold casting wheel is called die casting one-piece wheel. Aluminum die casting plants usually use adc12, a380 and other die casting aluminum alloys for die casting. Spoke Wheel A spoke wheel, also known as a wire wheel, is a common wheel structure in motorcycles and bicycles. It consists mainly of a circle, spoke cap, spokes and shaft. The circle is covered with holes. These holes place spoke caps, which are attached to the spokes. The spokes pass through the spoke...

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...

Sandblasting is a common surface treatment method used in the manufacture of aluminum alloy products and CNC machining production. In this article, I will detail the principles, application methods, advantages and disadvantages of the sandblasting process. What is sandblasting? Sandblasting is a surface treatment technology powered by compressed air to form a high-speed jet beam, the jet (such as sand, pearl salt, sodium bicarbonate, glycine powder, silver, etc.) high-speed jet to the surface of the workpiece or object to be treated. The beaded medium is guided to the surface of the material. The target surface is smooth, clean and shiny by friction reaction. Sandblasting is a traditional and time-consuming process for large and complex materials with different shapes. As a result, the concept of sandblasting was patented and introduced in the United States in 1870. The concept of sandblasting comes from the natural phenomenon of sand erosion caused by dust in desert areas. Sandblasting is used to...

Aluminum surface treatment process can be divided into: Aluminum surface treatment process have those? I. Polishing Polishing is a common aluminum processing method, designed to reduce the roughness of the surface of the workpiece through mechanical, chemical or electrochemical action, so as to obtain a bright and flat surface. This processing method mainly utilizes polishing tools and abrasive particles or other polishing media to modify the surface of the workpiece. The main purpose of polishing is not to improve the dimensional or geometrical accuracy of the workpiece, but rather to focus on obtaining a smooth surface or mirror shine. In some cases, polishing is also used to eliminate luster, i.e., matting. A common tool used in the polishing process is the polishing wheel, which is usually made of multiple layers of canvas, felt or leather laminated together and clamped on both sides by a circular metal plate. The rim of the polishing wheel is coated with a polishing compound, which...