HOT INFORMATION / More
1
2018 - 04 - 18
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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6.1.10 detection of parallelism between ends of springs: the spring is placed vertically on the plate.The difference between the maximum and minimum values of the surface of the end ring is measured by the dial indicator. The difference between the maximum and minimum values is the parallelism deviation between the ends of the spring.6.1.11 spring straightness detection: put the spring level on the plate and roll one.Zhou, determine its maximum bending position and measure the gap between the maximum bending point and the flat plate with a feeler gauge.The measured gap is the deviation of the ...
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2018 - 08 - 09
The number of diameter length is described!(1) the diameter of the spring wire d: is the wire diameter of the spring. (2) the maximum outer diameter of the spring outer diameter D: spring. (3) the inner diameter of the spring D1: the smallest outer diameter of the spring.(4) the middle diameter of the spring D2: the average diameter of the spring. Their formula is: D2 = (D + D) = 2 = D 1 + D = D D.(5) apart from the support ring, the distance between the two adjacent circles of the spring corresponding to the axial distance of the point on the middle diameter is t:, and is expressed ...
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2018 - 08 - 23
Salt fog refers to the dispersion system composed of salt micro droplets in the atmosphere. It is one of the three defense series of artificial environment. Many enterprise products need to simulate the destructive nature of the marine surrounding climate to the products. The salt fog test is a simulation of this phenomenon, so the test equipment, salt fog test box, came into being.Salt fog can be divided into two categories, one is natural environmental exposure test, the other is artificial accelerated salt spray environmental test. The artificial simulated salt fog environment test is a kin...
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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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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...
7
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...
8
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 ...
9
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...
NEW INFORMATION / More
1
2018 - 07 - 28
6.1.10 detection of parallelism between ends of springs: the spring is placed vertically on the plate.The difference between the maximum and minimum values of the surface of the end ring is measured by the dial indicator. The difference between the maximum and minimum values is the parallelism deviation between the ends of the spring.6.1.11 spring straightness detection: put the spring level on the plate and roll one.Zhou, determine its maximum bending position and measure the gap between the maximum bending point and the flat plate with a feeler gauge.The measured gap is the deviation of the ...
2
2018 - 08 - 09
The number of diameter length is described!(1) the diameter of the spring wire d: is the wire diameter of the spring. (2) the maximum outer diameter of the spring outer diameter D: spring. (3) the inner diameter of the spring D1: the smallest outer diameter of the spring.(4) the middle diameter of the spring D2: the average diameter of the spring. Their formula is: D2 = (D + D) = 2 = D 1 + D = D D.(5) apart from the support ring, the distance between the two adjacent circles of the spring corresponding to the axial distance of the point on the middle diameter is t:, and is expressed ...
3
2018 - 08 - 23
Salt fog refers to the dispersion system composed of salt micro droplets in the atmosphere. It is one of the three defense series of artificial environment. Many enterprise products need to simulate the destructive nature of the marine surrounding climate to the products. The salt fog test is a simulation of this phenomenon, so the test equipment, salt fog test box, came into being.Salt fog can be divided into two categories, one is natural environmental exposure test, the other is artificial accelerated salt spray environmental test. The artificial simulated salt fog environment test is a kin...
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2018 - 09 - 07
In the heat treatment of forgings, the way of placing parts to reduce deformation is to hang them vertically as far as possible, to place them vertically at the bottom of the furnace, to support them horizontally with two points, to place the fulcrum between one-third and one-fourth of the full length, and to place them flat on the heat-resistant steel tooling.In the cooling process of parts, the types, cooling properties and hardenability of quenching medium are related to deformation. The change of cooling performance can be adjusted by changing the viscosity, temperature, liquid pressure, a...
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2018 - 09 - 19
Spring steel wire will generate residual stress during the process of cold drawing and oil quenching and heat treatment. Moreover, spring wire is formed during the process of manufacturing and shot peening is conducted.High frequency quenching, carburizing, nitrification, etc. are used as surface hardening treatment. As a result of these treatments, residual stress will be generated in the material.The qualitative and quantitative analysis of the residual stress of the material will be an important factor to improve the fatigue properties of the spring.Residual stress of the spring is usually ...
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2018 - 09 - 29
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 e...
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2018 - 10 - 16
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...
8
2018 - 10 - 26
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...
9
2019 - 12 - 30
Spring design and its fabrication play an important role in manufacturing and industry around the globe. Springs come in all shapes and sizes to meet industry needs and are made from a wide range of metal alloys. Materials used for spring design and wire forming consist of high strength alloys.In general, wire formed into springs is cold rolled or drawn, and a made of medium to high carbon steel with high yield strength that allows for excellent elastic properties.Mechanical PropertiesThe mechanical principles of springs are very basic. They are an elastic component. Potential mechanical ...
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Common specifications of spring

日期: 2018-08-09
浏览次数: 33
nelson

The number of diameter length is described!

(1) the diameter of the spring wire d: is the wire diameter of the spring. 

(2) the maximum outer diameter of the spring outer diameter D: spring. 

(3) the inner diameter of the spring D1: the smallest outer diameter of the spring.

(4) the middle diameter of the spring D2: the average diameter of the spring. Their formula is: D2 = (D + D) = 2 = D 1 + D = D D.

(5) apart from the support ring, the distance between the two adjacent circles of the spring corresponding to the axial distance of the point on the middle diameter is t:, and is expressed by t. 

(6) the number of effective circles n: springs can keep the number of circles with the same pitch.

(7) Number of supporting coils n2: In order to make the spring work uniformly, ensure that the vertical end of the axis, manufacturing, often the two ends of the spring together. The number of tight loops only plays a supporting role, which is called the supporting ring. Generally, there are 1.5T, 2T and 2.5T, and 2T is commonly used.

(8) the total number of cycles n1: the number of effective cycles and the sum of supporting cycles. That is, the height of n1=n+n2. 

(9) high H0: spring without external force. Calculated from the following: H0=nt+ (n2-0.5) d=nt+1.5d (n2=2)

(10) spring expansion length L: length of wire required for winding springs. L (N1 D2) 2+n2 (pressure spring) L=, D2 n+ hook expansion length (pull spring)

Common specifications of spring


(11) spiral direction: left and right spin, commonly used dextral, the drawings do not indicate the general use of dextral. 

(12) the spring winding ratio; the ratio of the diameter D to the diameter of the steel wire d 1) the diameter of the spring wire d: the diameter of the wire for making the spring. 2) the maximum outer diameter of the spring outer diameter D: spring. 3) the inner diameter of the spring D1: the smallest outer diameter of the spring. 4) the middle diameter of the spring is D2: the average diameter of the spring. Their calculation formula is: D2 = (D + D1) 2 = D1 + D = D D 5) t: except the supporting ring, and the axial distance of the two rings adjacent to the spring becomes the pitch distance on the middle diameter, and is expressed in t. 6) the number of effective circles n: springs can keep the number of circles with the same pitch. 7) Number of supporting coils n2: In order to make the spring work uniformly, ensure that the vertical end of the axis, manufacturing, often the two ends of the spring together. The number of tight loops only plays a supporting role, which is called the supporting ring. Generally, there are 1.5T, 2T and 2.5T, and 2T is commonly used. 8) the sum of the total circle number of n1: and the sum of the support circle. That is, n1=n+n2. 9) the height of free high H0: spring is not affected by external force. Calculated from the following way: H0=nt+ (n2-0.5) d=nt+1.5d (n2=2) 10) the spring expansion length L: the length of the wire required for winding the spring. L N1 (D2) 2+n2 (compression spring) L= D2 n+ hook expansion length (pull spring) 11) spiral direction: there is a right and left spin, usually dextral, the drawings are not marked in the general use of dextral. 12) spring winding ratio; the ratio of medium diameter D to steel wire diameter D.


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