• March 10, 2023

Core-making machine Core-making machine core-making machine Core-making machine core-making machine Casting equipment used to make cores. According to the different methods of real sand during core making, core shooting machines and core making machines can be divided into shock core making machines, core extrusion machines and core shooting machines. The vibrating core making machine is used to produce large and medium-sized sand cores that are hardened outside the core box, and can also be used for no-bake sand cores that are hardened inside the core box. It compacts the core sand by shock action. The core extrusion machine is used for sand cores with constant cross-sectional shape. The core shooter is a core-making equipment developed in the 1950s (Figure 1). The working principle of the core shooting machine is shown in Figure 2. When shooting sand, the compressed air quickly enters the sand shooting cylinder, pushes the sand particles through the gaps in the sand layer, and forms a sand air flow, so that the core sand is injected into the core box at high speed, and the core box is filled at the same time. Tight. The size of the core made by the core shooter, the surface is smooth. According to the shape and size of the core and the binder used in the core sand, the core shooting machine is divided into: ①The hot core box core shooting machine is a small and medium-sized core making machine with thermosetting resin as the binder. Heat hardens the core. ②The shell core machine is used to manufacture thin shell cores. The sand surface of the core sand is pre-covered with a phenolic resin film, which is hardened in a heated core box. ③The cold box core shooter is a small and medium-sized core making machine with resin as the binder, blowing air into the cold core box to harden the core. ④ Ordinary core shooters use vibrating sand buckets to add sand to make cores hardened outside the core box. Coated sand core shooting machine solves the problem of labor shortage in foundries flexible. The driving method of the coated sand core shooting machine is pneumatic, and it is used in conjunction with an air compressor. Equipped with mold cleaning and coating device. The machine is easy to operate and easy to use, even a lesbian can easily operate it. Equipped with a pneumatic sand feeding device, which can automatically add sand quantitatively. Thereby greatly reducing the labor intensity of workers. Special specifications can be designed and manufactured according to the needs of users. It can also design supporting designs and make molds for users. The advent of the coated sand core shooting machine has led to manual core making, and a part of it can also be made into a sand-coated shell casting method, which reduces the occupied area of the casting workshop, and how many layers can be stacked together. Simple, convenient, high utilization rate of molten iron. At the same time, the coated sand core shooting machine also solves the problem of labor sh...

• March 10, 2023

  1. The water tester is used to test the glue effect of the glue strip. Air-tightness testing equipment is used to test whether there is water leakage, belt wear and other problems at the glued position in the form of hydraulic pressure. Generally test 3PSI for two minutes without water leakage, the bonding effect is considered qualified.   2. The test needs to be done step by step, first try IPSI/30 seconds, and slowly progress to 3PSI/2 minutes. Abnormal results caused by sudden pressure can be avoided.   3. Adjust the tightness of the "iron ring" of the water testing machine. If it is too tight, it will damage the rubber layer and film of the fabric, and the air tightness test will even leave marks on the fabric; if it is too loose, the water pressure will not meet the standard and cause not getting normal results   4. The glue layer and film of some fabrics are easily damaged, and the "iron ring" of the air tightness tester needs to add a layer of soft fabric. Prevent the "iron ring" from damaging the glue layer and film of the fabric.   5. The water used by the water testing machine must be clean and free of impurities, so as to avoid debris from clogging the pipes, and the waterproof tester will cause inaccurate data on the pressure gauge. The pipes and water container of the water tester need to be cleaned regularly.   6. When testing the water test machine, the airtight leak tester may have fabrics that are easy to absorb water, which should be handled carefully to prevent the fabrics from absorbing moisture and being difficult to dry, which will affect the subsequent processing and final packaging.    Choose D & S Automatic, we will provide you with the best service.

• February 02, 2022

The full name of the salt spray test machine is a salt spray test machine, which is mainly used to test the corrosion resistance of samples. At present, it is widely used in aerospace industry, automotive electronics, electronic electrician, mobile phone digital, plastic products, metal materials and other industries to test its corrosion resistance. It is also to simulate extreme conditions under natural conditions or working conditions to understand the properties of each sample. performance temperature. The working principle of the salt spray testing machine is relatively simple. It mainly uses corrosive gas and liquid to spray the sample. By spraying the corrosive gas and liquid until the corrosion of the sample occurs, the longer the time is as the corrosion resistance of the sample, the It means that the corrosion resistance of the sample is better. The working principle of the salt spray test is to compress the corrosive solution into an air spray, and then wrap the spray on all sides of the sample as much as possible. This test can be carried out continuously or cyclically until the expected corrosion phenomenon appears on the sample. The corrosion time is then recorded to indicate the corrosion resistance of the sample. Generally, the corrosion solution in the salt spray testing machine is mainly 5% sodium chloride solution or adding 0.26 grams of copper chloride per liter to the sodium chloride solution as a salt spray corrosion solution. In addition, the salt spray testing machine can independently adjust the settlement and spraying volume of salt spray to ensure constant test temperature, convenient operation and stable test environment. Therefore, it is often used to test the corrosion resistance of daily necessities or industrial products. Choose our D&S machines to provide you with the best salt spray testing machines.

• January 16, 2023

D&S Automatic Co,Ltd Spring Festival Holiday Notice Spring Festival Holiday is around the corner. Our office will be closed between Jan 17th and Feb 1st. lf any issues please send mail ([email protected])to me or call my mobile at +86-13600706701 （Wechat&Whatsapp same number). Best wishes！

• December 30, 2022

The New Year is coming. Our office will be closed between January 1st and January 3th. lf any issues, please send mail ([email protected])to me or call my mobile at +86-13600706701(Wechat&Whatsapp same number). Best wishes！

• November 28, 2022

The broad definition (Laminator or Laminating Machine) is to heat two or more layers of the same or different materials such as cloth and cloth, cloth and paper, cloth and artificial leather, and various plastic and rubber sheet coils. A machine that is melted, semi-melted or combined with a special adhesive. At present, most of the search results of compound machines on the Internet are digital compound machines with copy function, because digital copiers also have compound functions, and digital copiers are a relatively wide range of office equipment, so when searching for compound machines, the search results of digital copiers more. Generally speaking, a compound machine refers to a compound device in home textiles, clothing, furniture, automotive interiors and other related industries. It is mainly used for the production of two or more layers of various types of cloth, leather, film, paper, sponge, etc. craft. Specifically, it can be divided into glue compounding and glueless compounding. Glue compounding is divided into water glue, PU oil glue, hot melt glue, etc. The glueless compounding process is mostly direct hot pressing bonding between materials or compounding with flame combustion. At present, the national standard for composite machines has been implemented. use: 1. Applied to glue lamination of cast film, breathable film and non-woven fabric. Suitable for baby diapers, medical protective clothing, food desiccant packaging bags and other industrial products. 2. Applied to non-woven fabrics and other materials for gluing, compounding (lamination) and slitting processing. It is suitable for the processing of matching filter materials for household air purifiers, car air purifiers, air conditioners, refrigerators, etc. Choose our D&S machines to provide you with the best compound machine.

• October 31, 2022

The pH value of water quality, through 3, ORP and other testing to test the water control instrument display the detection value of the control instrument, indicators, and equipment to monitor the water quality, by water quality / pool monitoring, monitoring automatic adjustment, control related equipment to achieve maintenance functional system. Product advantages ● Automatic water absorption: automatic water absorption through program control, with self-judgment function of water intake. ● Automatic silt drainage: The automatic silt drainage function is realized through program control and the design of water tank inclination. ● Automatic overflow: Through the firmware structure, the water can be exchanged up and down at the same time with the automatic silt removal to ensure the timeliness of measurement. ● Liquid level detection: real-time monitoring through liquid level gauge to ensure the rationality of the transmitted data. ● Automatic cleaning: Regular automatic cleaning through program control to ensure that the sensor measurement interface is clean. ● Automatic storage: Customize the storage period according to the needs, and save the records in real time. ● Power supply system: integrated design of solar panel, battery pack, controller, inverter, solar bracket/box. ● Pre-floating: Water is drawn through filtration to prevent air leakage from the bottom valve and ensure normal water intake. ● Low cost: no need to build a station building, it can be installed and used immediately, and the maintenance is simple. Organization The monitoring station adopts a three-layer architecture design of perception control layer, transmission communication layer and application service layer. (1) The perception layer is mainly for the construction of surface water quality monitoring sub-stations, including fixed stations, water station instrumentation integration and system integration. This layer can realize the collection of water quality monitoring data, alarm data, instrument equipment status data and environmental dynamic index data, and can also transmit video monitoring information, realize the network access between the monitoring station and the central terminal, and the reverse control of the monitoring station. (2) The main construction content of the transmission communication layer is the wireless communication link. (3) The application service layer receives, processes, summarizes, counts, and analyzes monitoring point data. This layer has dynamic real-time monitoring, historical data query, alarm data query, login log and operation log query, period statistics, curve analysis, user Management, measuring point management, historical data import and many other functions. Choose our D&S machines to provide you with the best automatic water testing equipment.

• October 08, 2022

Cold saw cutting machine principle: The cutting method of cold saw cutting machine is generally used in cutting machine and sawing machine. The requirement of cutting is to ensure that the steel incision section is not destroyed. Cold saw cutting machine in addition to a few square, round, Angle steel simple section sometimes used with the cross section of the shape of the shear, the majority of steel sawing. Cold saw cutting machine saw cutting can be divided into hot saw cutting and cold saw cutting. Hot sawing has the advantages of rapid post-rolling treatment, compact equipment and low sawing force, so it is widely used. In order to match with the capacity of the rolling mill, a production line is set up with multiple sawing equipment. When the cold saw cutting machine saws, it should calculate the shrinkage amount according to the steel temperature when cutting, so that the length error after cooling is within the allowed range. The task of cold saw cutting machine sawing is fixed length sawing, so many production lines are equipped with fixed length machine and saw machine supporting. In addition to cutting the head and tail with the cold saw cutting machine, attention should also be paid to cutting the defective part and sampling. Cold saw cutting machine sawing should be combined with supply length to achieve the best material, which is also an important means to improve the yield. Steel cooling to strictly implement the cooling system, the correct placement of steel in the cooling position. Cold saw cutting machine is the most important to prevent the production of improper cooling caused by product quality problems. Such as prevent rail cooling too fast hydrogen precipitation too late and produce hydrogen embrittlement. Cold saw cutting machine cold saw cutting and hot saw cutting contrast, generally defined by the temperature of the cutting rolled parts, there are the following types, cold saw cutting machine rolled parts when the temperature is lower than 100℃ for cold cutting. When the temperature of the rolled parts of the cold saw cutting machine is 100 ~ 600℃, it is warm cutting. When the temperature of the rolled parts is higher than 600℃, it is hot cutting. Cold saw cutting machine generally, we will be used to saw the metal saw mill temperature is lower than 300℃ called metal cold saw, will be used to saw the metal saw mill temperature is higher than 600℃ called metal hot saw. Cold saw cutting machine metal hot saw and metal cold saw, the equipment structure is no difference. For square and round steel production lines, cold sawing machine is seldom used for cold sawing, because the steel is too hard, the sawing area is large, the sawing period is long, and the incision quality is low. Hot sawing or grinding wheel saw is mostly used. Cold saw cutting machine for groove Angle, steel pipe and other production lines, because of its thin wall structure, sawing area per unit time is small, easy to make steel deformation, and serious...