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Water seal

Engine cooling water pump is the main part of the cooling system of automobile engine. Its function is to force the cooling fluid in the engine to circulate in the cooling system and reduce the influence of high temperature on the engine during the working process of the engine. Water seal is the core of the work of the pump. The movement of the water seal itself is very simple, just rotates with the shaft. . Water seal, pump body and bearing are super-hard matching mechanical seals. This kind of seals is composed of static rings and dynamic rings, which are perpendicular to the shaft, and the smooth and straight surface of each other, and do relative rotation. Coolant movement in the pump is very complex, different types of water seals, using different types of coolant, if the water package is equipped with problems, the engine coolant will appear seepage, then the pump bearing lubrication will be washed away, the entire pump function will be invalid. There are two main types of water seals: one is separated (rotating ring parts and static ring parts are respectively installed on the pump), the other is integrated (rotating ring parts and static ring parts are first installed together, and then installed on the pump), separated water seals are mainly used in larger pumps, now commonly used is integrated water seals.

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Water seal

Engine cooling water pump is the main part of the cooling system of automobile engine. Its function is to force the cooling fluid in the engine to circulate in the cooling system and reduce the influence of high temperature on the engine during the working process of the engine. Water seal is the core of the work of the pump. The movement of the water seal itself is very simple, just rotates with the shaft. . Water seal, pump body and bearing are super-hard matching mechanical seals. This kind of seals is composed of static rings and dynamic rings, which are perpendicular to the shaft, and the smooth and straight surface of each other, and do relative rotation. Coolant movement in the pump is very complex, different types of water seals, using different types of coolant, if the water package is equipped with problems, the engine coolant will appear seepage, then the pump bearing lubrication will be washed away, the entire pump function will be invalid. There are two main types of water seals: one is separated (rotating ring parts and static ring parts are respectively installed on the pump), the other is integrated (rotating ring parts and static ring parts are first installed together, and then installed on the pump), separated water seals are mainly used in larger pumps, now commonly used is integrated water seals.

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Water seal

Engine cooling water pump is the main part of the cooling system of automobile engine. Its function is to force the cooling fluid in the engine to circulate in the cooling system and reduce the influence of high temperature on the engine during the working process of the engine. Water seal is the core of the work of the pump. The movement of the water seal itself is very simple, just rotates with the shaft. . Water seal, pump body and bearing are super-hard matching mechanical seals. This kind of seals is composed of static rings and dynamic rings, which are perpendicular to the shaft, and the smooth and straight surface of each other, and do relative rotation. Coolant movement in the pump is very complex, different types of water seals, using different types of coolant, if the water package is equipped with problems, the engine coolant will appear seepage, then the pump bearing lubrication will be washed away, the entire pump function will be invalid. There are two main types of water seals: one is separated (rotating ring parts and static ring parts are respectively installed on the pump), the other is integrated (rotating ring parts and static ring parts are first installed together, and then installed on the pump), separated water seals are mainly used in larger pumps, now commonly used is integrated water seals.

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Automobile rubber pipes

Today, we learn the fifth categories of automotive rubber products: Rubber pipe products are used in the chassis, engine and body of the three parts, for oil transportation, gas transmission, drive, control, brake, cooling and heating seven systems of rubber pipe, play a role in fuel supply, gas supply, water supply and power transfer. The types of hoses include fuel pipe, water conveying hose, brake hose, vacuum hose, air conditioning hose, radiator hose, power steering hose and special branch hose. In addition, the last major category of automotive rubber products is other products, the main varieties of brake film, leather bowl and dust shield.

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The role of automotive rubber products in Automobiles Today

Automobile rubber products can be divided into six categories: tires, sealants, shock absorbers, tape products, rubber tube products and other products (such as wipers, fenders, adhesives, sealants and interior decoration products). Today's first category: auto tires: The tire is one of the important parts of the automobile, it contacts with the road directly, and works with the automobile suspension to alleviate the impact when the automobile is running, to ensure that the automobile has good ride comfort and ride comfort; to ensure that the wheel and road surface have good adhesion, improve the traction, braking and passing of the automobile; to withstand the weight of the automobile; The importance of tire in automobile has attracted more and more attention. Nowadays, the main components of most automobile tire materials are natural rubber or synthetic rubber. The comprehensive performance of natural rubber is superior to that of synthetic rubber, so the advanced tire uses natural rubber. In order to make rubber have the properties required to make tires, it is necessary to infiltrate different chemical materials into the rubber, namely chemical additives. One of the most important additives is carbon black, because carbon has a special adsorption, carbon particles and rubber molecules bond very well, making the rubber hardness, strength and grindability. Because carbon black and rubber are basically equal, the main material from the car tire is actually a rubber and carbon black composite material.

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The Connection Between Production Monitoring and OEE

To determine the value in this technology, engineering.com undertook a study in September 2018 of 254 manufacturing professionals. 

We asked respondents about the level of production monitoring in their environments as well as their performance across several metrics including:  OEE Meeting scheduled deliveries Machine uptime Scrap/rework rates Quality   This report provides insight into the connection between more sophisticated production monitoring approaches and OEE and other metrics. 

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Controlling solid particle trajectories from the inhaler to the bronchial pipes: the necessary DEM-CFD collaboration

Dry powder medicine is becoming increasingly popular as it is easier to store in hostile (dry, remote, dangerous) regions for an extended period of time the efficiency of the delivery can be vastly improved with well-designed equipment. The interaction between the active pharmaceutical ingredient, its carrier and the inhaler to deliver the correct dosage in the respiratory system remains a challenge. The combination of computational fluid dynamics (CFD) together with discrete element modeling (DEM) is essential to design a dry powder inhaler (DPI) which is robust, easy-to-use and deliver the medicine to the bronchial pipe of the target population, despite its humane variability and possible pathologies. 

Join this webinar to understand how coupling Rocky DEM with ANSYS Fluent makes it possible to understand solid particle trajectories, to optimize the DPI design, and validate the proper delivery of particles in a patient-specific respiratory tree geometry. 

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Characteristics of rubber bushing

[Feilong Jiangli rubber products series] In the guiding device of suspension system (such as swing arm, rear axle, etc.), more and more hinge points connected with the body are connected by rubber sleeve. Rubber axle sleeve has become an indispensable component in automobiles because of its good vibration isolation performance, elastic characteristics and attenuation characteristics. Characteristics of rubber bushing 1.  Since the shape of rubber parts has more freedom of choice, the stiffness of three directions (axial, radial, torsional) can be properly selected. 2.  It can be vulcanized firmly with metal, simplifying the structure of fixing and supporting. Therefore, any of the three directions can be used to support the load. 3.  The elastic modulus of rubber is smaller than that of metal, which can produce greater elastic deformation. 4.  The internal friction of rubber is larger than that of metal and tends to increase with the increase of frequency. Therefore, the resonance amplitude can be reduced by using rubber sleeve. when rubber is at low temperature, the dynamic elastic coefficient will rise sharply. Therefore, when choosing the rubber bushing material, we should strive to improve the material's high temperature resistance, low temperature resistance, oil resistance and so on.

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Time to Market -- What holds the key for Product Teams?

Engineering.com surveyed 234 product development professionals in 2018 about their challenges and processes. The results were conclusive. Getting products to market on time was the biggest challenge they faced. But not all teams performed poorly. In this webinar we’ll share the secrets of the top teams versus the poorer performers. 

We will dig into the reasons why time to market continues to be such a challenge, including systemic problems such as: Late stage design changes Ordering wrong parts Using wrong versions of a file
While attendees might be able to guess at some of the system and process problems that delay product launches, this research is bound to reveal a few surprises. 

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The Core Issues that Frustrate Product Development Teams

Engineering.com surveyed 234 product development professionals to find out. 

We were a bit surprised to find out how many teams reported failing against these goals. 

When we analyzed the results, we found a strong correlation between reported success in product development and the types of systems and processes they used. 

Here are a few more insights:  The biggest frustration that product teams reported was a failure to deliver new products on time Teams who reported failure at delivering products on time were 3.8X more likely to express dissatisfaction with their systems for accessing product information for quick decision making Teams who reported poor performance at product innovation were 6X more likely to say that they were dissatisfied with their ability to collaborate with other members of their product development team
The data supporting these findings is presented in charts and graphics in this 16 page report. 

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Introduction to Uncertainty Quantification for Engineers

Anyone who builds complex, mission-critical systems knows that real-world performance is hard to simulate and test. This is due to uncertainty. Uncertainty may arise from approximations or variations in boundary conditions and initial conditions in models, or it could arise from deviations in materials, assembly, operating conditions, and wear in finished products. 

Uncertainty Quantification (UQ) tools can quantify these uncertainties while significantly reducing the number of simulations or tests required to get meaningful results. UQ tools help engineers analyze the difference between models and real-world performance so they avoid premature failure, costly warranty payments, and emergency redesigns. Major federal agencies, including the Department of Defense (DoD), the Food and Drug Administration (FDA), and the Federal Aviation Administration (FAA), have guidance materials encouraging the use of UQ in simulation analysis. 

During this webinar you will learn:  The basics of common UQ and probabilistic methods. The role UQ plays in the verification, validation and uncertainty quantification (VVUQ) process. How to apply UQ methods to an engineering system and drastically save design time and much more.

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Getting Started with Office 3D Printing

What you will learn:

This document provides a comprehensive insight into all of the considerations that need to be addressed when you're considering investing in an in-house 3D printing solution. After reading the document, you should be able to answer the following questions: How to establish buy-in across the organization and overcome barriers to adoption? What organizational considerations should be taken into account? How should the logistics of a new in-house 3D printing setup be managed? What to expect once the 3D printers are up and running? Download the white paper now!

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Effect of ignition time on particle size and particle size distribution

Ignition time has little influence on the mixture formation of PI engine, but it has great influence on GDI engine. The C engine is mainly used for analysis. The bigger the ignition advance angle is, the shorter the mixing time and the more inhomogeneous the mixing will be. Therefore, the nucleate particles will increase the ignition advance angle and the quantity concentration will gradually increase. Because the oxidation rate and formation rate of particulate matter have little change with ignition advance angle, the change of aggregated particulate matter with ignition advance angle is not obvious. With the increase of ignition advance angle, nitrogen oxides emissions gradually increased, and CO and HC. gradually increased. Feilong Jiangli automobile water pump, professional design and production for 30 years.

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Wheel retardation force

Wheel blocking power mainly comes from 3 aspects: (1) the structure of the tire itself; between the wheel friction pairs and the braking system. (2) external factors: vehicle detection, tire and ground friction. The braking force of automobile wheels is reflected by the friction between the tire surface and the brake drum surface when it is running freely. Therefore, the influence of the tire on the braking force is also greater. (1) If the tread pattern is too deep or obviously damaged, the friction coefficient increases abnormally when the tread roller is running freely, which results in the increase of the friction force which blocks the wheel running. (2) The rim or hub deforms and loses roundness, making it run irregularly in motion, causing the wheel to rotate unbalanced, causing the wheel to jump and yaw when it rotates, resulting in excessive blocking force. (3) When the tire pressure is too small, the tire deformation on the hard roller is large, so that the contact area between the tire and the brake roller increases, resulting in the increase of hysteresis loss during rolling, thereby increasing the wheel resistance. If the diameter of the tire is too small, the depth of the wheel falling into the middle of the two brake drums will increase, and the axle load will tilt forward, which will result in a larger drag force. (3) assembly factors: wheel friction pairs and brake systems are poorly assembled, increasing friction factor or friction area. (1) during the shunting and shunting of shunting personnel, the speed of the vehicle is fast, which results in the small axle load data and increases the retardation force. (2) The misalignment of the vehicle position on the shunting line leads to the uneven distribution of the axle load between the left and the right, which is the increase of the side block force on the side with more axle load distribution.

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The cause of engine carbon deposition and its influence on engine

The formation of carbon deposition is often caused by carelessness of drivers. 1. adopt the "high speed low speed" bad driving habits. 2. long idle speed and low speed running. 3. the use of purity and quality can not meet the requirements of gasoline. These bad factors will have different effects on the engine, such as 1. Cold start is difficult, the idle speed of the cold car can not reach the prescribed speed, when serious, the idle speed of the cold car will stall, and the idle speed of the hot car is low. 2. engine power decreases, acceleration is not smooth, fuel consumption increases. 3. The engine exhaust emission becomes worse, and the service life of spark plug, oxygen sensor and ternary catalytic converter will be shortened at the same time. 4. Carbon deposition will also cause engine piston ring stuck, affecting the sealing performance of the piston ring, resulting in increased oil consumption, resulting in engine oil burning, shortening the service life of the engine. Feilong Jiangli Ltd suggests that you develop good driving habits, do a good job of car maintenance, so that their love life is longer.

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5 Unlikely Places To Connect With Engineers

Engineers are among the most valuable — and desirable — types of buyers in the industrial space. However, they are also incredibly elusive. To bridge the gap, manufacturers need to continuously and proactively build connections with engineers every day.   In this eBook, we'll explore five unexpected — and overlooked — places across the web where you can connect with the engineers you want to do business with.  Download your free copy now.

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Design Considerations for High Frequency Transformers

With the need for more efficient and smaller power supplies providing power to electrical equipment, high frequency transformers are a critical component of supplying power to modern electronics.  Our eBook, “Design Considerations for High Frequency Transformers” takes a look at the principles and calculations associated with these types of custom transformers. This guide will discuss:     Basic Principles SMPS Topology Off Grid Energy Production Designing And more!

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Plastics for automobile parts

Plastic is a kind of macromolecule material which is produced by complex chemical reactions such as polymerization, resin bonding, resin addition, condensation and so on. Properties: It is a light material (1/8 of steel), high specific strength, good chemical stability, corrosion resistance, good insulation, wear resistance, sound absorption, easy processing and molding. The main applications are: Installations: dashboard and gasket, sundries box, steering wheel, joystick, interior trim panel, seat armrest, door lining, various filling materials, etc. External fittings: sealing strip, bumper panel, fender, skirt edge, trim strip, hose, shock absorber gasket, handle, etc. Others: air filter housing, fan blades, various sensors, electrical appliances, and some gear. With the continuous improvement of advanced engineering plastics in performance, it is being developed and applied in automobile engine cover, roof, luggage rack and other parts. Plastics are divided into thermoplastics and thermosets. Thermoplastic softens after heating, has plasticity, machinability, and hardens after cooling; if it softens after reheating, hardens after cooling. This process can be repeated and has no effect on its structural properties. For example, polyfluoroethylene, polystyrene, polyamide (also known as nylon) and so on, they have simple molding process, high production efficiency, certain mechanical properties, but low heat resistance and rigidity. Thermoplastics are most widely used in automobiles. Commonly used are: ABS (acrylonitrile butadiene styrene), PP (polypropylene), PE (polyethylene) and so on. Thermosetting plastics react chemically when heated and harden after solidification; they cannot be softened by reheating. Such as phenolic resin, epoxy resin and so on. They are highly heat-resistant, pressure resistant and difficult to deform, and are relatively inexpensive, but the molding process is complex and the production efficiency is low.

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Switches and Controls: How to Select the Right One

Make the wrong choice, and the outcomes can range from a small inconvenience to compromising the safety of operators and equipment. 

Choosing the right switch—and the right switch supplier—is essential. Smart design engineers will know the performance requirements and manufacturability constraints of their product, and will reach out early and often to collaborate with their switch supplier. 

But where should a designer begin? 

In this 4-page whitepaper, you will learn the basics of choosing switches: Key constraints design engineers need to consider, including circuit, panel and user performance Design for manufacturability Questions to ask when choosing your switch vendor

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Brief analysis of automobile common materials

There are many kinds of materials used to produce automobiles: iron and steel, non-ferrous metals, plastics, rubber, glass, ceramics and so on. According to statistics, in recent years, the weight composition ratio of the main materials of an ordinary car is approximately 65%-70%, 10%-15% of non-ferrous metals, and 20% of non-metallic materials. Various new materials, such as light metal materials, composite materials, high-tech synthetic materials, are increasingly used in modern automobiles. Metal materials have various properties. It has physical and chemical properties, mechanical properties and process properties. Physical and chemical properties refer to the properties of metal materials under various physical conditions and the ability to resist the erosion of various chemical media. Density: mass per unit volume; thermal conductivity: the ability to conduct heat; electrical conductivity: the ability to conduct electric current; thermal expansion: the ability to increase volume when heated; melting point: the temperature when the solid state becomes liquid; magnetism: the magnetic conductivity of metallic materials is called magnetism; corrosion resistance: metal resists the occurrence of the surrounding medium at room temperature The ability of chemical reactions to be destroyed; oxidation resistance: the ability of metals to resist oxidation at high temperatures. Mechanical performance refers to the resistance of metallic materials under various loads (external forces). It has the following indicators: Impact toughness: the ability of metal materials to resist failure under impact loading is called impact toughness. Fatigue strength: Fatigue cracks occur in metal materials under cyclic loading and lead to fracture called fatigue fracture; the maximum stress that does not produce fracture under repeated cyclic loading is called fatigue strength; the fatigue strength is measured by fatigue test; when the number of stress cycles of metal materials reaches 107, the parts are still Without breaking, the maximum stress at this time can be used as fatigue strength. For some high strength steels, the maximum stress at 108 cycles of stress is their fatigue strength. Cutting performance: cutting performance refers to the difficulty of machining metal materials. Heat treatment performance: heat treatment performance refers to the ability of metal materials to adapt to various heat treatment processes.

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