HOT INFORMATION
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  • 2019 . 12 . 16
    20
    Helical springsMaterials necessary for every aspect of daily life.  Helical spring is a spring that is subjected to torsional deformation, and its working part is also tightly wound into a helical shape. Its characteristic line is linear, can make compression spring, stretch spring and torsion spring. When the load is large and the radial size is limited, two compression springs with different diameters can be used together to become a combination spring. The total winding number n1 is the sum of the effective winding number n and the supporting winding number n2. Volute coil helical spring can store more energy and bear more load, but the manufacturing process is more complicated. The performance of the concave spiral spring is similar to that of the conical spiral spring.1. The...
  • 2019 . 12 . 16
    8
    Put simply, the most important factors of torsion spring performance are spring rate deflection, load capacity, and wind. In a torsion spring, spring rate accounts for the return of angular torque per unit of angular displacement. Deflection is the amount that the spring resists pressure before overstressing itself and becoming damaged (bent), and the wind is simply how the spring is wound, be it right (clockwise), left (counterclockwise), or with double torsion.torsion springThe following is the necessary information of a torsion spring:(1) control diameter: (a) outer diameter, (b) inner diameter, (c)  angle(d) tolerances(2) size of wire or bar.(3) materials (type and grade).(4) coils number :(a) total winding number and (b) right or left turn.(5) finished(6) the load under...
  • 2019 . 12 . 11
    18
    A compression spring comes in many configurations, shapes and sizes. They are conical, hourglass and barrel of varying lengths—and can be used as a shock absorber, vibration damper, a pure energy accumulator, or force generator. Because of their versatility, how efficiently they store energy and the multiple shapes in which they can be manufactured, these types of mechanical springs have a wide selection of applications.In the automotive industry, compression springs are used throughout the vehicle. In the medical applications , compression springs are used as parts in assembling a device.They also implanted straight into a patient’s body. For example, so specialized are the springs for arterial widening—not only the materials but also for the extremely small dimensions to ....
  • 2018 . 12 . 03
    433
    Daisy
    Today, the development of science and technology, spring has been a very important hardware accessories in our life, different products use the spring is not the same, the longest used spring can be roughly divided into: tension spring, torsion spring, compression spring, spiral spring, flat spring.The following is a very practical tension spring characteristics of the application:Many different products or hooks are used to ensure that the tension spring tension source, tension spring and compression spring work in the opposite way, tension spring is in the extension or pull out of the reverse action, when we pull pull spring on both sides of the loop device, tension spring in the middle of the wire will try to pull them back together.Tension springs are usually stretched with a certain a...
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HOT INFORMATION / More
19
2018 - 11 - 01
1) make it clear whether to use raw drawn steel wire or lead hardened steel wire;2) propose the requirements of steel wire diameter, strength grade (group) and standard number (select according to table 1.1);3) if there are special requirements such as strength and diameter allowable error, etc. (standard parameters are in parts 2 and 3);4) special packaging and marking requirements (see 1.4);5) carbon steel spring suitable for long-term work under the condition of temperature 121 ℃, highest working temperature should be chosen alloy spring steel.3 special needsShaped cross section: square, re...
20
2020 - 01 - 13
A compression spring is an open-coil helical spring that offers resistance to a compressive force applied axially. They are usually coiled at a constant diameter, though they can be coiled in other needed forms such as conical, concave (barrel), convex (hourglass), or various combinations of these. Compression springs are used to resist force and/or store energy,1、CharacteristicsBy far the most widely used type of spring, compression springs are designed to oppose compression and return to its uncompressed length when the applied force is removed. 2、Service LifeIt should be...
21
2018 - 07 - 14
Spring is one of the most commonly used parts in the mechanical and electronic products industry. It can produce very large elastic deformation when it is loaded, and this elastic deformation also transforms mechanical work or kinetic energy into deformation energy, which can unload the change of spring, and disappear and return to the original shape, finally, finally. Transformation of deformation energy into mechanical work or kinetic energy. With the continuous progress of the times, the application of spring is very wide, the automobile, computer, TV, pin, phone, cell phone and so on are u...
22
2018 - 08 - 01
Core tips: elastic formula: F=kx, F for elastic, K for the stiffness coefficient, X for the length of the spring length, such as the length of the spring for example, to test a spring of 5N: 5N pull the stiffness coefficient of 100N/m spring, the spring is elongated 5cmF= KX, K is the stiffness coefficient (unit is Newton per meter), X is the spring elongation (unit is rice), this law is called Hooke's law.Elastic formula:F=kx, F is elastic, K is stiffness coefficient, X is spring stretch length.For example, to test a 5N spring:When a spring with a stiffness coefficient of 100N/m is pulled...
23
2018 - 08 - 14
(5) the development of spring steel wireAfter more than 100 years of development, the technology of spring steel has experienced lead hardened to oil quenching, and now it develops to induction hardening. Coupled with the continuous innovation and improvement of technology and equipment, the quality of varieties is constantly updated. The newly developed valves have been developed by induction heating and tempering with spring steel wire. It has been proved that the plastic, toughness, relaxation, fracture toughness, delayed fracture resistance, fatigue life and so on are all compared with oil...
24
2018 - 08 - 27
Core tip: the surface of spring can be generally treated, such as blackening (blue), phosphating, electroplating, spray molding, etc. In recent years, the zinc chromium film dacroa DACROMET dacroa protective layer has excellent corrosion resistance, which is 710 times the corrosion resistance of the traditional electroplating layer, and there is no hydrogen embrittlement in the electroplating process. Generally, the surface of springs can be treated, such as blackening (blue), phosphating, electroplating, spray molding, etc. In recent years, the zinc chromium film "dacrom DACROMET da...
25
2018 - 09 - 11
Like most other basic mechanisms, metal springs have existed for a long time in the bronze age. Even for metals, wood is used as a structural member of flexible bow and arrow and military catapult. In the Renaissance, precise clocks made precision springs the first necessity. In Fourteenth Century, we saw the precise clock of revolutionary astronomical navigation developed. The world's exploration and conquest of European colonial powers continue to provide impetus for watchmakers "science and art." The other area of the firearm promotes the development of the spring. At the dawn...
26
2018 - 09 - 21
compression spring is under axial pressure of the spiral spring, it is used in the data section for more rounded, useful also rectangle and multi-strand steel rolled a travelling, spring is usually pitch, such as the shape of the compression spring are: cylindrical, conical, convex and concave and a small amount of noncircular, compression spring there is a certain gap between circle and circle, when under external load spring contraction deformation, deformation energy storage.The tension spring is a spiral spring that bears the axial tension.When there is no load, the stretch spring is usual...
27
2018 - 10 - 08
The spring should ideally conform to hooke's law, that is, the relationship between stress and strain in the elastic range is linear.However, since the actual spring steel is a polyphase and polycrystalline material, there must be inconsistencies in composition, structure, elasticity, etc., and the stress and strain deviated from the linear relationship within the elastic range, which is called elastic incompleteness or anelastic.The phenomena such as elastic after effect, elastic lag, stress relaxation and elastic modulus decrease are produced.After tempering, the stabilization process ca...
NEW INFORMATION / More
19
2018 - 07 - 28
Detection of geometric size of 6.1 compression springs6.1.1 spring material diameter detection: check the spring material diameter generally with vernier caliper or micrometer. In particular, attention should be paid to the inspection of springs with small winding wires and annealed alloy wires wrapped by automatic spring coiling machines.6.1.2 spring free height or free length detection: the spring is generally placed in horizontal position measurement. It is allowed to be placed in erect position only when the self weight has no obvious effect on the height or length of the spring when it is...
20
2018 - 08 - 09
At first, during the experiment, Hooke found that the weight added to the spring was proportional to the elongation of the spring, and he tested his conjectures by many experiments. In 1678, Hooke wrote a spring paper, which introduced the results of experiments on elastic objects, laying the foundation for the development of material mechanics and elastic mechanics.Spring dynamometerIn the early nineteenth Century, under the premise of a lot of experimental work in the former, British scientist Thomas Yang summed up the research results of Hooke and others, pointing out that if the elongation...
21
2018 - 08 - 21
Springs are ubiquitous in all kinds of machines—from consumer products to heavy industrial equipment, take apart anything that involves a mechanism, and chances are, you’ll find a spring inside. Springs are storage devices for mechanical energy—think of them as analogous to batteries! The earliest spring-driven clocks appeared in the 1400s. Fast-forward some 600 years, you still have to charge the Apple Watch everyday, and it’s not nearly as fast as winding a clock…but I digress.My personal fascination with springs began with Slinkies and wind-up toys, and countless mechanical pencils were sac...
22
2018 - 09 - 07
There are two types of heat treatment deformation: one is the size change, the other two is the change of part geometry. Different methods of heat treatment, deformation and deformation prevention of parts size and geometry are also different.The longer the holding time and the higher the temperature are, the more carbon is dissolved into austenite and the larger the expansion of martensite is. The expansion of martensite is the largest, followed by upper bainite, and the volume change of lower bainite and troostite is very small. At low temperature tempering, martensite shrinks and the amount...
23
2018 - 09 - 19
Spring machine is now in the production of spring necessary equipment, due to the abundant of spring and the increase of precision is also more and more high to the requirement of spring machine, the spring machine maintenance is particularly important at ordinary times, and the main factors affecting the service life of spring machine has two, one is the operator of whether scientific and standardized operation, another is reasonable in daily maintenance.After using the spring machine for a period of time, the efficiency of the machine will be significantly reduced, affecting the efficiency o...
24
2018 - 09 - 29
The corrosion of spring can be divided into chemical corrosion and electrochemical corrosion according to the type of reaction.They are the result of changes in the metal atoms on the surface of the spring or the loss of electrons to an ionic state.If the metal on the surface of the spring simply reacts with the surrounding medium, and the spring causes corrosion, it is called chemical corrosion.For example, the spring is oxidized in the particularly dry atmosphere to form an oxidation film, and the spring is chemically changed with the liquid or impurity in the non-electrolyte liquid, which i...
25
2018 - 10 - 16
The selection of spring material shall be determined according to the properties of the spring bearing load, stress state, stress size, working temperature, environmental medium, service life, requirements for conducting and magnetic conductivity, technical performance, material source and price, etc.When determining the shape and size of the material section, the series sizes specified in the national standards and ministerial standards should be selected first, and non-standard series of materials should be avoided as far as possible.Medium and small-sized springs, especially spiral-tension ...
26
2018 - 10 - 26
Please avoid the improper way of using (1) more than the use of the maximum compression (300000 back to the conditions, after a close with the use of a long) stress causing the wreck, close to close with the use of a long, can make the spring line department gradually close to that, because of the high spring constant change caused by load curve with high, nearly and produce high stress to make spring break, please do not use more than 300000 times.The use of the spring without prepressure due to the gap caused the spring up and down vibration caused the spring distortion, if there is prepress...
27
2019 - 12 - 23
Precision metal stamping is a cold-form manufacturing process that converts metal sheets into desired shapes—be it parts, components, or finished products—for a variety of applications. In metal fabrications shops or manufacturing operations, metal sheets, known as blanks, are fed through the tool and die surface of stamping presses to shape and shear the blanks into a finished three-dimensional object. Precision metal stamping services allow for mass production of complex parts in any quantity for nearly all industry.  The automotive industry, in building and construction,...
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Hot News / 热点新闻
2020 . 01 . 13
点击次数: 31
Constant force spring, or “clock” spring, is a roll of prestressed strip which exerts a nearly constant restraining force to resist uncoiling. The force is constant because the change in the radi...
2020 . 01 . 13
点击次数: 40
A compression spring is an open-coil helical spring that offers resistance to a compressive force applied axially. They are usually coiled at a constant diameter, though they can be coiled i...
2020 . 01 . 06
点击次数: 16
When choosing the right spring, selecting the best spring wire is a critical before manufacturing. Below are some of the most common spring wire materials and their unique characteristics .Stainless S...
作者: Daisy
发布时间: 2018 / 10 / 30
点击次数: 382
The ground spring is also a hydraulic door closer, except that it presses the spring with a worm gear rather than a rack and pinion.Because the worm wheel can be rotated in a positive and negative direction, the ground spring can be used for two-way open doors, while the door closer can only be used for one-way open doors.The technical key of the ground spring is the bearing seat at the lower part of the main shaft, which determines the bearing grade of the landing spring.Because the ground spring used for two-way doors carries the weight of the door, the weight of the door is crucial to the selection of the ground spring compared to the door closer.Door width and air pressure are also important in choosing the type of ground spring.From the perspective of production, the worm wheel struct...
作者: Daisy
发布时间: 2018 / 10 / 29
点击次数: 256
The torsion spring is divided into single torsion spring and double torsion spring. The spring is usually inserted into the pin or shaft. When external force is applied, a torsion force is generated according to the shaft center of the spring to make the spring coiled tightly or loose.Double - twist spring is divided into external double - twist and internal double - torque spring.The loops are either closely encircled or separately encircled to allow for a load of torque (at right angles to the spring axis).The end of the spring can be wound into a hook or straight twist arm.The following is the necessary information of a torsion spring:(1) free length.(2) control diameter :(a) outside diameter, (b) inside diameter, (c) inside diameter of casing, or (d) outside diameter through round rod....
作者: Daisy
发布时间: 2018 / 10 / 29
点击次数: 273
Each circle is formed into a tightly closed spiral ring or a pitch ring, which extends outwards when subjected to external forces and maintains a force of contraction towards the middle.There are many kinds of spring hooks: English hook, German hook, earring hook, fishtail hook, etc.(1) free length: (a) total length, (b) total length of the ring, and (c) length inside the hook ring.(2) control diameter :(a) outside diameter, (b) inside diameter, (c) inside diameter of casing.(3) steel wire size "wire diameter".(4) materials (type, grade).(5) winding number :(a) total winding number and (b) right or left turn.(6) terminal form.(7) load in the hook.(8) load rate, deflection, weight per inch.(9) maximum stretching length.The Extension Spring is a typical Spring, which can be shaped ...
作者: Daisy
发布时间: 2018 / 10 / 26
点击次数: 296
Most widely used, in manufacturing, the spiral wound into a separate ring, so that each ring gap (pitch), so that force contraction, to maintain tension to the two ends.When under the maximum load, it cannot be completely compressed, and the gap must be kept between effective turns to avoid friction or other material embedding, causing fatigue damage.The free length of the spring should be equal to the solid length of the spring plus the gap and the amount of deformation.To increase the contact surface of the compression spring, the surface should be ground to obtain 60~80% contact surface.Its end has a variety of shapes: two seated rings, grinding equality at both ends.The two ends may be either open or closed or flat or worn because they are under pressure.The following is the necessary ...
作者: Daisy
发布时间: 2018 / 10 / 26
点击次数: 150
Please avoid the improper way of using (1) more than the use of the maximum compression (300000 back to the conditions, after a close with the use of a long) stress causing the wreck, close to close with the use of a long, can make the spring line department gradually close to that, because of the high spring constant change caused by load curve with high, nearly and produce high stress to make spring break, please do not use more than 300000 times.The use of the spring without prepressure due to the gap caused the spring up and down vibration caused the spring distortion, if there is prepressure, the spring is relatively stable.When the spring is used, the pin and the spring will be worn and broken.When used without spring guide, the bottom of the spring and the body of the spring are eas...
作者: Daisy
发布时间: 2018 / 10 / 25
点击次数: 276
The spring relief valve is mainly composed of spool, seat, stem, spring and adjusting screw.The relief valve mainly USES spring force to press the spool on the seat.When the boiler pressure exceeds the pressure exerted by the spring on the upper part of the spool, the spool and stem are lifted and steam is discharged.When the boiler pressure is lower than the spring pressure acting on the upper part of the spool, the spool falls on the seat and the boiler stops discharging steam.The spool is a cone with a slight protrusion around the edge of the spool.When the steam opens the valve core, the edge of the valve core is also affected by steam pressure, which makes the whole area of action increase suddenly, and the valve opens when the valve stops.When the drop force is reduced, the steam for...
作者: Daisy
发布时间: 2018 / 10 / 25
点击次数: 394
The technological process of helical springs refers to the process of converting spring materials into finished springs, which flow through every process in sequence. Because of the spring material, the spring type and the processing method are different, the technological procedures of the spiral spring are also different. However, their basic technological processes are coil spring heat treatment end processing surface treatment.Next, introduce several typical processes.1. manufacturing compressed spiral spring with cold drawn spring steel wireFor the lathe coil spring, after the winding spring process has to be cut off, a spring connected to several springs is separated into a single spring.Some important springs can add a blank height classification procedure before grinding the face t...
作者: Daisy
发布时间: 2018 / 10 / 23
点击次数: 271
Wire forming spring is a mechanical part that uses elasticity to work. It is usually made of spring steel. It is used to control the movement of machine parts, to mitigate impact or vibration, to store energy and to measure the magnitude of force. It is widely used in machines and instruments.The spring is just an accumulator. It has the function of storing energy, but it can not release the energy slowly. To realize the function of releasing slowly, it should be realized by "Spring + large transmission ratio mechanism", which is common in the mechanical meter.Spring is a kind of elastic element widely used in the mechanical and electronic industry. When the spring is loaded, it can produce large elastic deformation and transform the mechanical work or kinetic energy into deforma...
作者: Daisy
发布时间: 2018 / 10 / 23
点击次数: 501
For a long time, the shape and performance of the extension spring will change. If the extension spring is always in a certain situation, it may change its quality due to external conditions.Generally, there are the following situations:I. wear of extension spring :Wear can be divided into abrasive, fatigue and corrosion wear fracture.Ii. Brittle fractureThe majority of spring break belongs to brittle fracture.Plastic fracture is possible only when the working temperature is high.In engineering, fatigue fracture, stress corrosion fracture and hydrogen embrittlement fracture are called brittle fracture.Iii. extension spring fatigue fractureSpring fracture under cyclic loading.Iv. Hydrogen embrittlement, cadmium embrittlement and black embrittlement:Brittle break due to high conten...
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