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  • Types of Springs and their Applications
    Types of Springs and their Applications
    2018 . 11 . 01
    183
    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 sacrificed to satisfy my curiosity. These days, I appreciate the grown-up applications of springs, especially when I drive over potholes on Highway!
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  • How to choose spring wire
    How to choose spring wire
    2018 . 11 . 01
    385
    Daisy
    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, rectangle, hexagonal, etc.Annealing treatment: suitable for large deformation and plasticity, such as flattening and triangulation.Stabilization treatment: the steel wire will be straightened after bein...
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  • floor spring
    floor spring
    2018 . 10 . 30
    405
    Daisy
    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...
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  • Torsion spring
    Torsion spring
    2018 . 10 . 29
    276
    Daisy
    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....
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37
The position and future of the spring in the manufacturing industry
The position and future of the spring in the manufacturing industry
2018 - 07 - 13
Although the spring industry is a small industry in the whole manufacturing industry, its role must not be underestimated. The industrial manufacturing industry and the automobile industry in the country should accelerate the development, and the spring industry, as one of the basic parts and parts, needs to have a development over the early stage to adapt to the rapid development of the country's whole industry. In addition, the expansion of the spring product variety and the improvement of the quality level are also the needs of the replacement of machinery and equipment and the imp...
38
Inspection content and specification for spring parts(part 7)
Inspection content and specification for spring parts(part 7)
2018 - 07 - 31
8.3.3 test machine should have the following functions: test time or preset function;Dynamic timing or counting function; test amplitude display or control function; automatic stop function.Evaluation of 8.4 spring fatigue test results8.4.1 fatigue life determination: under a given failure condition, the measured spring reachesThe maximum cycle number is the fatigue life of the spring.Verification of 8.4.2 fatigue life: if the number of cycles is tested, if the spring does not failThe validation test proved that the test was passed.8.4.3 reliability verification: according to the given reliabi...
39
The development course of spring material (Part 2)
The development course of spring material (Part 2)
2018 - 08 - 14
(4) the development of stainless steelChina is a big country in the production of stainless steel. With the production and development of stainless steel, many varieties have been developed naturally. At present, more than 50 kinds of stainless steel have been developed, which basically meet the needs of domestic production and development, and a brief description of some new varieties developed at present.1) the initial formation of austenitic stainless steel system. Low carbon austenitic stainless steel 0Cr18Ni9 and 00Cr17Ni2Mo2 have been developed to eliminate fatigue corrosion caused by ca...
40
History of spring
History of spring
2018 - 08 - 25
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...
41
History of spring
History of spring
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...
42
The difference between compression springs,tension springs and torsion springs
The difference between compression springs,tension springs and torsion springs
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...
43
The fixing (stabilization) of the spring
The fixing (stabilization) of the spring
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...
44
Use the properties of the spring properly
Use the properties of the spring properly
2018 - 10 - 18
With the rapid development of technology, spring's figure is everywhere, playing an irreplaceable role in all walks of life.How to use the properties of the spring itself according to local conditions will be today's small talk about the content.Spring measuring functionWe know that, within the elastic limit, the extension (or contraction) of the stretching spring, compression spring, torsion spring, bending spring, spring and spiral spring is proportional to the force.A spring scale is made from the property of a spring.Spring compression functionObserving various electrical switches,...
45
Types of Springs and their Applications
Types of Springs and their Applications
2018 - 11 - 01
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...
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37
Spring machine regular maintenance and daily maintenance is very important
Spring machine regular maintenance and daily maintenance is very important
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...
38
Analysis of spring corrosion
Analysis of spring corrosion
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...
39
Selection of spring material
Selection of spring material
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 ...
40
Proper use of the spring
Proper use of the spring
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...
41
Precision metal spring
Precision metal spring
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,...
42
Inspection content and specification for spring parts(part 2)
Inspection content and specification for spring parts(part 2)
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...
43
A brief history of the development of Hooke
A brief history of the development of Hooke's law
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...
44
Types of Springs and their Applications
Types of Springs and their Applications
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...
45
Analysis of deformation prevention measures for heat treatment of metal spring(part 1)
Analysis of deformation prevention measures for heat treatment of metal spring(part 1)
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...
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Hot News / 热点新闻
Constant Force Spring
Constant Force Spring
2020 . 01 . 13
点击次数: 79
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...
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Compression Springs
Compression Springs
2020 . 01 . 13
点击次数: 100
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...
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Spring wire materials
Spring wire materials
2020 . 01 . 06
点击次数: 39
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...
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Wash the stainless steel surface
Wash the stainless steel surface
作者： Daisy
发布时间： 2018 / 10 / 17
点击次数： 286
Washing method according to the surface state:General considerationsWhen washing, please pay attention not to scratch the surface to avoid using the bleaching ingredients and the cleaning solution containing abrasive agent, steel ball (brush roller ball), grinding tools, etc. In order to remove the cleaning solution, wash the surface with clean water at the end of washing.Surface condition and washing methodDust and dirt are washed with soap, a mild detergent, or warm waterLabel and film with warm water, weak detergent to scrubThe binder ingredient is alcohol or organic solutionUse a mild cloth or paper to dry and then wash with a neutral detergent or an ammonia solution or a special detergentRinse immediately with water, soak in an aqueous solution of ammonia or neutral carbonated soda, a...
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Definition and classification of spring steel
Definition and classification of spring steel
作者： Daisy
发布时间： 2018 / 10 / 16
点击次数： 279
A, definitions,Spring steel refers to the steel specially used to make spring elastic elements due to its elasticity in the quenching and tempering states.The elasticity of steel depends on its elastic deformation capacity, that is, within the specified range, the elastic deformation capacity makes it bear a certain load, and no permanent deformation occurs after the load is removed.Spring steel shall have excellent comprehensive performance, such as mechanical properties (especially elastic limit, strength limit and yield ratio), anti-elastic and anti-elastic properties (i.e. anti-elastic and anti-loose properties), fatigue properties, quenching properties, physical and chemical properties (heat resistance, low temperature resistance, oxidation resistance, corrosion resistance, etc.).In o...
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Selection of spring material
Selection of spring material
作者： Daisy
发布时间： 2018 / 10 / 16
点击次数： 272
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 springs, should be preferentially used steel wire, cold-drawn steel wire such as strengthened steel wire, lead bath and oil hardened tempered steel wire, which has higher strength and good surface qua...
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Surface treatment of stainless steel spring
Surface treatment of stainless steel spring
作者： Daisy
发布时间： 2018 / 10 / 15
点击次数： 332
There are three ways to use stainless steel spring to remove oil and oxide skin:1. Immerse the stainless steel spring into the plastic container with the metal cleaning agent A diluted with water (the proportion of cleaning agent A and water dilution is 1:1 or 1:2), and the time should be as follows: the spring surface should be free from oil and oxide skin to restore the metal color. The soaking time should not be too long.So stainless steel spring surface has matte effect.2. In the ultrasonic equipment, the proportion of cleaning agent and water is about 1:30. It is advisable to restore the metal color without oil and oxide skin on the spring surface.The above two methods can be applied to high precision spring.3. After the cleaning agent A is put into the vibration polishing machine wit...
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Measures to improve spring mass
Measures to improve spring mass
作者： Daisy
发布时间： 2018 / 10 / 15
点击次数： 380
(1) deformation heat treatment -- the combination of deformation reinforcement and heat treatment enhancement to further improve the strength and toughness of steel.Heat treatment of deformation has high, medium and low temperature.The high temperature deformation heat treatment is to produce the deformation immediately after the austenitic state at a stable distance, or can be combined with forging or hot rolling, that is, quenching immediately after hot forming.The deformation heat treatment has been applied to automobile plate spring production.(60 si2mn)(2) isothermal quenching of spring -- isothermal quenching can be adopted for springs with small diameter or sufficient permeability. It can not only reduce deformation, but also improve strength and toughness. It is better to conduct a...
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Spring manufacturing process
Spring manufacturing process
作者： Daisy
发布时间： 2018 / 10 / 12
点击次数： 369
There are many ways of making spring, but the main forming part is cold forming and hot forming.In spring in the cold forming process, the spring mainly made by oil material toughening, lead bath quenching tempering spring wire, cold drawn wire, etc., using this kind of material in the manufacturing process of spring generally do not need special heat treatment and only requires the stress relieving, adopted by the spring design work stress and material performance.Spring cold forming process is generally suitable for special-shaped spring with small line diameter or more complicated shape, such as line diameter less than 15mm, various kinds of snap, pull, twist spring, convex, concave and arc spring, etc.The cold forming process is simple and avoids the deformation and decarburization of ...
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Overview of spring surface treatment
Overview of spring surface treatment
作者： Daisy
发布时间： 2018 / 10 / 12
点击次数： 282
The spring is often corroded by the surrounding medium in the process of manufacture, storage and use.As the spring works under the influence of the spring force, the spring force will change and lose its function after being corroded.Therefore, preventing the corrosion of the spring can guarantee the stability of the spring and extend its service life.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, causing corrosion of the spring is called chemical corrosion.For example, the spring is oxidized in the particu...
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Type of paint used on spring surfaces
Type of paint used on spring surfaces
作者： Daisy
发布时间： 2018 / 10 / 11
点击次数： 395
Type of paint used on spring surfacesThe oxidation treatment of the spring (also known as bluish, blackened, cooked black, etc.) is mainly used to prevent the corrosion of the spring, and also to make the spring appearance bright.Oxidation treatment methods include: alkaline oxidation, alkali free oxidation and electrolytic oxidation.Spring oxidation treatment is often alkaline oxidation treatment, in the presence of oxidants (such as sodium nitrite) in caustic sodium solution.As the solution approaches the boiling point, the iron on the surface of the spring dissolves and forms sodium ferrite and sodium ferrite, which is then made of ferrous ironSodium sulfate interacts with sodium ferrite to form magnetic iron oxide (Pe3O4), or oxide film, with a thickness of about 0.5-1.5 microns.The co...
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Method for improving heat treatment performance
Method for improving heat treatment performance
作者： Daisy
发布时间： 2018 / 10 / 11
点击次数： 404
Manufacturers of heat treatment furnaces are adopting new features designed to improve the overall temperature distribution of their equipment: with improved ambient flow patterns, carefully designed energy and dynamic densities have brought very useful working capabilities.Process consistency is a major issue for aerospace (typically, Nadcap and AMS2750 U.S. army standards) and automotive (TS16949 test equipment) customers, and compatibility with more acceptable standards is building confidence between heat treatment equipment manufacturers and customers.This is especially true when the heat treatment furnace design matches the design of the expert process control system.Eurotherm already has a unique knowledge of aviation and automotive heat treatment specifications.These knowledge and s...
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