Locking insert keensert and the development of mold need to support each other

Mold is a kind of molding tool of the item, and the formation of mold needs a variety of fasteners and components to form.Mold on the industrial production to injection molding, blow molding, extrusion, die casting or forging molding, smelting, punching, stretching method to get the required products of various molds and tools.Mold mainly through the molding material, in short, the change of physical state to implement items shape processing.With the rapid development of industry, the mold product development needs and the development of the fasteners are interdependent.

 have spent& have spent Since 2011 is affected by different environments, fastener industry or will slow developing speed, in this case, fastener products need invoice must rely on the transformation to get development, along with the policy in place, as well as the upcoming series of development policy, etc., can promote the further development of the industry.And must adhere to innovation and restructuring, will continue to closely rely on cars, new energy, aerospace, shipbuilding, urban traffic, IT, electronic appliances, construction and other key industries, accelerate the fastener product optimization and upgrading, promoting the healthy and steady development of fastener industry.

A Self Tapping Insert to install and remove

The installation of Self Tapping Insert
Drill out old threads with a standard drill. Note: Drill is oversize — see charts for proper dimensions. Chamfer the hole with a standard countersink (82°-100°).Tap new threads with a standard tap. See charts for proper size and depth.Screw in the insert until slightly below surface.Drive keys down with several hammer taps on the proper installation tool

Remove the Self Tapping Insert
Drill out material between keys and internal thread with standard drill to specified depth (refer to charts for proper dimensions).Deflect keys inward and break off.Remove insert using an E-Z OUT or similar type tool.Same size replacement insert may be installed in the original hole.

Why would Thread Insert oxidation of root cause analysis

Fasteners, if use stainless steel as the main material is also to know about the problem of magnetic stainless steel itself.Stainless steel is generally considered not magnetic, but actually austenite system column material after a certain processing technology, is likely a certain magnetic, but if regard magnetic is judging the quality of stainless steel fasteners, standard is not accurate.
have spentFasteners, when selected, stainless steel material have magnetic doesn't mean the quality of high and low, some chromium manganese stainless steel is not actually a magnetic stainless steel.In stainless steel fasteners, stainless steel and chromium manganese can't replace the use of 300 series stainless steel, especially in high corrosive medium business environmenthave spentFasteners of nickel element USES have spentFasteners in the process of using stainless steel as material, ever more dependent on the use of nickel element, but in the case of nickel element global prices, price of fasteners is affected by the larger.Fasteners production enterprises in order to ease the cost pressure, improve the competition ability of fasteners, especially looking for alternative materials, production of low nickel stainless steel fasteners.

Self Tapping Insert and development of the market

1, the development and adjustment in parallel.Efforts in the past, the plastic fastener industry in China as the continuing development and value, has been gradually took to the qualified reasonable development path, to develop this year remain, such as ganzhou of grain enterprises to choose the direction of the plastic Self Tapping Insert, and then to develop themselves, while maintaining steady growth, realize the nature of the company from production to research and development, production and sales, plastic Self Tapping Insert expanding the scope of services to various industries, such as used for automobile surface shell, panel, LED lamps and lanterns, reveal frame, PC board, many industries have their figure.This is also many domestic plastic Self Tapping Insert industry development model.


2, build, and articles for daily use industry is the key point of the development of the market.Ganzhou grain surplus enterprise relevant experts said that the domestic real estate construction business has been the hotspot, under the production and sales of building materials have broad market, the quality of the plastic Self Tapping Insert often determines the quality of the building.At the same time, in today's emphasis on quality of life, small to a door clasp, big to household appliances, car all have plastic Self Tapping Insert products.


3, foreign markets of preemption.Europe and the United States and other developed economies will continue to be imported from China most of the plastic Self Tapping Insert.But the manufacturers in these countries will focus on some quality with excellent products.At the same time, such as ganzhou grain surplus plastic Self Tapping Insert successful experience, not only to do good quality, can make good use of logistics cost this advantage, also is the key to the international market.So, the preliminary opinion of domestic plastic Self Tapping Insert in the Self Tapping Insert industry or other cross industry has very profound development prospects, therefore if every plastic Self Tapping Insert industry businesses such as ganzhou generally grasp the plastic grain surplus enterprise future potential, so easy to success.

Steel Tangless insert of characteristics(2)

(4) be able to bear or endure corrupt sex: because of stainless steel wire spiral sets of excellent corrosion resistance, can in a variety of materials and environmental conditions to ensure its performance, usually use wire screw assembly will not delay and rust.
(5) heat: steel wire at high temperature can stop a screw thread connection card dead or scratches.
(6) save material: compared with the ordinary standard internal thread, under the condition of the same intensity, using steel wire spiral sets, to the best possible use of the yield limit, can choose small size, high strength bolt, so that it can be a lot of saving material, reduce weight and to reduce the volume.
(7) type locking wire can put the screw a screw locking in the threaded hole, when the vibration and impact, can make the screw does not fall off string, locking device than usual process performance is good.Lock wire have repeatedly disassembling and not reduce a screw thread of the torque, but also has the high usability.

Steel Tangless insert of characteristics(1)

A screw 

(1) under the free state of steel wire diameter of the screw hole diameter larger than the load, to make special steel wire by a screw assembly torque wrench to make it smaller in diameter, has been used special tap for tapping into the wire in the screw hole, packed, have similar to the expansion of the spring steel wire spiral sets, make its firmly fixed in the threaded hole, and never vary with screw screw out out.
(2) increase the bearing capacity of the threaded connection and fatigue strength: steel wire spiral sets of screw and the installation of steel wire elastic connection formed between the internal thread of a screw hole, and thus eliminate the screw torque between the internal and external screw thread and tooth type Angle error, can make each lap on the length of the specified thread on uniform distribution load, to strengthen the internal thread, and vibration reduction, thus can improve the fatigue strength of threaded connection parts.
(3) : wear-resisting steel Tangless Insert by the extremely hard cold rolled stainless steel wire precision winding, helical surface hardness can reach HRC43 ~ 50, like the surface of the mirror can be up to 2 ~ 4 mu m (finish) to reduce the friction and wear, can make the screw on the torque generated by the friction and reduce 90%, and with minimal utmost to tighten screw torque moment and screw pull, prevent the screw loose, make all kinds of screw in the best state.

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Thread serInt Installed in the screw holes can lock the bolt of the M10

First,Thread serint spiral sets of materials of the products is the use of high strength, high precision, high hardness of diamond stainless steel refined but become, its inside and outside has the thread, install it in the screw holes of various materials, can form standard M, MJ thread, with continuous high strength, high precision, strong earthquake, impact resistance and wear resistance of the function, and can protect the body thread, dispersing the body pressure, prolong the service life of the body.
have spent& have spentLock wire and common smooth a screw type of Thread serint on the basis of the difference is that a screw than ordinary increase once or several times clamp ring.Locking typeThread serInt spiral sets of special structure in strong vibration and shock environment will lock screw in the screw hole, not loose, the lock is better than other locking device.Can be used in the power of instruments and meters, precision equipment, as well as aerospace, aviation, military equipment and other high coefficient of insurance required.

 have spent have spentLock wire to install a screw in the screw holes, can enhance screw hole thread of wear-resisting, heat resistant, corrosion resistant performance.Because the lock wire surface finish is extremely high, a screw can effectively reduce the friction between the internal and external thread its material itself but also has high temperature resistance, corrosion resistance properties.Can be used to often part of the disassembly, installation and often turn of the screw hole, prolong its service life.

Thread Insert set of installation does not need to use the screw tap tapping

Thread Insert set is a one-piece fasteners, its installation does not need to use the screw tap tapping.Both inside and outside of self Thread Insert sets have teeth, you don't need a pre installation into the Thread Insert,Thread Insert can be directly using installation tools will be twisted into a particular hole, Thread Insert sets a slot type and three round hole 3 kinds of products, including three circular groove depending on the length and 307 with 308 type two kinds.Whether slot type or three round hole Thread Insert sets of installation is not need to use the screw tap tapping.
Thread Insert set as a kind of high strength fastener products, it can be installed into the screw holes, strengthen the strength of the screw thread hole, strengthen screw Kong Nai wear and prevent damage to the performance of either metallic materials or non-metallic materials of screw holes can be threaded to protect it.


Thread Insert set as high strength fasteners, it can also be used for thread damage repair thread, use the selfThread Insert hole repair damage to the screw holes of fast, only need to damage the screw holes to drill hole, and then install self Thread Insert, the screw holes can quickly get repair, either metallic materials or non-metallic materials screw holes of the damage it can quick fixes.

Thread insert Advantages and representation and sheath

Thread insert Advantages and representation
Type locking screw sheath is also called the self-locking type screw sheath, type locking screw sheath is made of ordinary steel wire thread sheath evolved from a kind of fastener products, is in the midst of flexible screw sheath increased once or several times made from poly thread sheath called type locking screw sheath.Type locking screw sheath after screwing in the screw hole, in addition to rely on their own elastic should be fixed to the screw hole, also using the polygon edges and the friction between the screw thread matching to screw up the locking function.When the screw into the hole type locking screw sheath.Screw before enter the polygon clamp ring is loose, screw through the locking ring will open the side of the polygon when make the bending deformation of the side of the polygon, which hold the friction screw, screw, the friction force makes the screw will not automatically loosening due to vibration of, don't need to take other measures for locking.
Wire thread sheath

You know material such as aluminum alloy Thread Insert have to install one thread sheath

You know material such as aluminum alloy Thread Insert have to install one thread sheath?Low strength materials such as aluminum alloy Thread Insert to install one sheath what good?First of all, one thread sheath, as a kind of high strength fasteners, its biggest characteristic is to improve the strength of the Thread Insert, to improve the quality of the products.Koala screw sheath are imported fasteners, high strength, high precision diamond stainless steel wire and refined by resistance to its inside and outside has the thread, it has high strength and high strength thread, install it in the Thread Insert, can form a high standard of M, MJ internal thread, can enhance the service life of the Thread Insert, can make the aluminum alloy, zinc alloy, plastic, copper, low intensity of material such as bake lite Thread Insert will not be damaged.

Will need to be removed after the installation is complete to install the handle, in removing when installing the tail handle easy to pull the last lap steel wire, black wire
When installation, because there is no installation tail handle, so eliminating the ordinary steel wire with tail to remove a screw to install the handle red tape, save time, improve efficiency.Improve connection condition, increase the bearing capacity of the threaded connection and the fatigue strength: using steel wire can eliminate a screw bolt and screw hole deviation between the pitch and tooth type, make uniform distribution load, so as to improve the bearing capacity of the threaded connection and fatigue resistance.Can be used in ceramic, plastic, glass and other hard brittle fragile material fastening connection.Effectively prevent fracture phenomenon.

Thread Insert

 holes are often damaged because of various reasons, one is a dedicated to Thread Insert a Thread Insert products, choose one screw to install into all kinds of low intensity of material in the screw holes, can enhance the strength of the Thread Insert, improve the screw hole thread wear-resisting, heat resistant, anti corrosion performance, prolong the service life of Thread Insert, enhance the quality of the products.
Koala is a kind of imported fasteners, Thread Insert koala has a tail with Thread Insert standard wire, compared to a screw is not installed tail handle, overcome the common wire need to remove a screw to install the tail handle, the shortcomings of low efficiency of the installation.


Ordinary steel wire installed a screw with tail end handle is not easy to break, remove the tail end when the handle is easy installation processes, in addition, the installation of tail handle removal is not easy to clean up after work, easy to cause the stranded affects the quality of the product, the koala is a kind of a screw is not installed the tail handle of thread protection fasteners, there is no tail wire some disadvantages of a screw.

The classification of a Thread Inserts Tools

Thread Insert series installation wrench used to install the Thread Insert  in the preparation of the screw holes, the installation of Thread Insert  sleeve wrench points many, ordinary manual Thread Inserts Tools, winding manual installation wrench, electric tools, pneumatic tools, etc.Simple examples to use in the process of the winding manual installation wrench features:
The tool, in the absence of compressed air and electricity of the ideal of the installation of small batch production tools,can provide installation speed is faster than the manual installation tools.
The tool can be used to install the regular and lock setting two screw sheath Tool spindle rotation first into the sheath, and then install the sheath to attack the silk hole.
In the process of installation, the diameter of the screw sheath squeezed narrowing when through the bottom of the tool, so it is easier to install.
After installed, rotating the handle counterclockwise, take out the tools.

Self Tapping Insert can be self tapping screw fasteners

Self Tapping Insert

Is a one-piece new a screw threaded fasteners, at the same time is also a kind of self tapping screw fasteners, self tapping screw made of stainless steel and carbon steel two kinds, can apply to most industrial materials for installation, install it in metal can be nonmetallic material in the screw holes, can enhance the strength of screw thread, improve the screw holes wear-resistant, corrosion-resistant performance, prolong the service life of screw holes, to improve the quality of the products.
Self Tapping Insert sets of material and surface treatment:
1, carbon steel, zinc plating color;Suitable for aluminum alloy, copper alloy, plastic and other engineering strength lower substrate.
2, stainless steel;For high strength products such as cast iron and so on.

Self Tapping Insert sets of advantages:
1. Self Tapping Insert can be self tapping screw fasteners, parent metal without a tapping beforehand, save cost.
2 large contact area, and finished products, withstand strong tension, product design can use the lower strength of materials.
3, Self Tapping Insert installation is simple, rapid, and only an assembly tool, the cost is low, almost no defective rate.
4, to the vibration resistance is strong, can prevent the loose.
5, and the gap of the parent metal in everything, if the parent metal containing bubbles when also has a good air tightness.

effect factors of the spring fatigue strength

Surface state of maximum stress occurs in the surface layer of spring material, so the quality of the surface of the spring has much effect on the fatigue strength.Spring material caused in the process of rolling, drawing, and rolling defects such as cracks, defects and scars are often the cause of spring fatigue fracture.
The smaller the materials on the surface roughness, the smaller the stress concentration and fatigue strength is also higher.The influence of surface roughness on the fatigue limit.With the increase of surface roughness, fatigue limit.In the case of the same roughness, different steel grade and different extent of the coiling method of the fatigue limit is different also, such as cold heat coil spring small extent of the coil spring.When heated, because steel hot coil spring and its heat treatment due to oxidation make the spring material surface roughness and decarburization phenomenon, thus reduced the fatigue strength of the spring.

Three factors affect spring fatigue strength

Three factors affect spring fatigue strength

1. The greater the size effect of material size, due to various defects caused by the cold and hot working technology, the higher the possibility to produce the greater the likelihood of surface defects, these reasons will lead to fatigue performance degradation.Therefore when calculating the fatigue strength of the spring to consider the influence of size effect.
2. The metallurgical defects of non-metallic inclusions in metallurgical defects refers to materials, bubble, element segregation, and so on.Exist on the surface of the inclusions is a source of stress concentration, can lead to inclusion and matrix interface between prematurely to produce fatigue crack.Adopt measures, such as vacuum smelting, vacuum casting can greatly improve the quality of steel.
3. The corrosive medium spring when you are working in a corrosive medium, because of the surface pitting or surface grain boundary corrosion and become a source of fatigue, under the effect of varying stress will gradually expand and cause fracture.Such as the spring steel work in fresh water, the fatigue limit is only 10% ~ 25% in the air.Corrosion influence on spring fatigue strength, not only related to the spring by the effect of variable load frequency, and associated with the working life.So design calculation affected by corrosion of the spring, it should be working life into consideration.