CN101466955A - Friction-joining steel plate and friction-joining structure - Google Patents
Friction-joining steel plate and friction-joining structure Download PDFInfo
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- CN101466955A CN101466955A CNA2007800214691A CN200780021469A CN101466955A CN 101466955 A CN101466955 A CN 101466955A CN A2007800214691 A CNA2007800214691 A CN A2007800214691A CN 200780021469 A CN200780021469 A CN 200780021469A CN 101466955 A CN101466955 A CN 101466955A
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Abstract
Since a portion of projected streaks on a friction- joining steel plate 10 is provided with a Vickers hardness which is at least 3 times greater than that on the surface of steel plates IA and IB, the projected streaks are allowed to more easily enter into the steel plates IA and IB, and since a frictional resistance derived from a mechanical slip resistance of the thus entered projected streaks acts between the steel plates IA and IB, a marked increase is obtained in the friction coefficient between the steel plates IA and IB via the friction-joining steel plate 10. Consequently, a friction-joining structure is constituted by a slip resistance mechanism which can be easily validated from a theoretical or an experimental point of view and is also small in variance of the friction coefficient. Therefore, a friction coefficient used in design can be set at a high value with high accuracy to realize a rational design.
Description
Technical field
The present invention relates to friction-joining steel plate and friction-joining structure, and relate more specifically to be inserted in the friction-joining structure that will engage the friction-joining steel plate between the product made from steel and wherein use friction-joining steel plate of mutual frictional engagement.
The preference of the Japanese patent application No.2007-49013 that requires the Japanese patent application No.2006-107457 of application on April 10th, 2006 and applied on February 28th, 2007, the content of these two applications is incorporated into this by reference.
Background technique
By convention, in building and field of civil engineering, usually implement frictional engagement, wherein fastening apparatus is used for the fastening product made from steel that will engage such as high-strength bolt, they are then by utilizing the surface friction drag caused by the compressive force that is derived from fastening apparatus to be bonded with each other, thereby are provided for constituting the connected structure of product made from steel (building, bridge etc.) of the framework of steel structure.In general frictional engagement, engage product made from steel and handle by the following method to form friction surface to guarantee friction factor such as basic material (column, beam, pillar etc.) or joint element (splice bar, gusset etc.).Just, use sand milling or grinding to remove the scales skin from product made from steel, they are allowed to prevent to form red rust then, or use shot blast so that friction surface is coarse.Yet these methods only produce relatively little friction factor and have difficulties aspect the stable surface friction drag guaranteeing on friction surface.Therefore, do not select, have only the lower numerical value of employing, under the Security of considering design, make to be difficult to provide rational design.Under these environment, the difficulty above just wishing for a long time to solve.
Simultaneously, the known a pair of mating face that contacts with each other that is used for engaging product made from steel is processed, so that as the structure that increases the surface friction drag between the product made from steel that will engage by frictional engagement, they are on hardness and roughness different each other (for example with reference to day careful patent application No.2002-155910 of the present disclosure).The friction-joining structure of describing in the patent documentation 1 is so so that shot blast is stood on one of mating face and shot blast is stood on another mating face twice, make the mating face become the hardness friction surface different thus with roughness, thereby the friction factor between the increase friction surface and reduce the quantity of bolt or diameter is diminished, and realize reasonably design.
Yet, in the conventional friction-joining structure of in above-mentioned patent documentation 1, describing, stand the one or many shot blast to form friction surface owing to will engage the mating face of product made from steel, must handle and manyly availablely will engage product made from steel, thereby causing artificial and the increase of time and the rising of processing cost, this has just brought problem.And, be used for making the hardness of friction surface different with roughness even comprise the method for shot-peening to improve the friction factor of friction surface, in the friction factor that so obtains, still exist more wide in range variation.Therefore, do not have the upper limit that significantly improves available friction factor in the design as desired, thereby cause less cost efficiency, this has just brought another problem.
Target of the present invention provides a kind of friction-joining steel plate and friction-joining structure, and they can low-cost be applied to the frictional engagement part of wide variety, and can also improve surface friction drag reliably, thereby realizes reasonably design.
Summary of the invention
The friction-joining steel plate that first aspect of the present invention is described is the friction-joining steel plate between the product made from steel of will engaging that is inserted in by the mutual frictional engagement of compressive force that is derived from fastening apparatus, friction-joining steel plate all provides projection striped in parallel to each other a plurality of or that mutually form continuously in concentric mode and is provided with at least one the jack that allows fastening apparatus to insert on two faces, wherein the part of projection striped is designed to Vickers hardness and is higher than the surface that will engage product made from steel.
In friction-joining steel plate of the present invention, the part that can be arranged so that the projection striped is set to Vickers hardness than the surperficial height that will engage product made from steel twice at least.
Vickers hardness is according to the test method of JIS (JIS) (JIS Z2244) or the hardness of metal materials as being tested by the test method (ISO 6507-1) of International Organization for Standardization defined, in this case, refer to and to engage product made from steel and friction-joining steel plate surface hardness separately.That is, the Vickers hardness at the part place of friction-joining steel plate upper process striped is as H
VhThe lip-deep Vickers hardness that provides and will engage product made from steel is as H
VmProvide, can be arranged so that to engage product made from steel and friction-joining steel plate respectively surface hardness is set so that hardness ratio r
h(=H
Vh/ H
Vm) can satisfy following formula (1).
r
h≥3...(1)
According to the invention described above, because the part of friction-joining steel plate upper process striped is set to harder (preferably than the surface that will engage product made from steel, hardness exceeds twice at least), projection striped on the friction-joining steel plate can more easily enter and will engage in the product made from steel, and thereby the caused surface friction drag of mechanical slip resistance of the friction-joining steel plate that enters acts on and will engage between the product made from steel, thereby makes the friction factor that will engage between the product made from steel via friction-joining steel plate increase significantly.Therefore, friction-joining structure by can be easily from the skid resistance mechanism that the angle of theoretical or experiment is confirmed constituted and the variation of friction factor less.Therefore, friction factor is set to accurate high value and realizes reasonably design in design.In other words, friction factor can be set to than high with the quantity that reduces bolt or minimize its diameter under the normal conditions, thereby makes and the local losses of the area of basic material can be retained to minimum degree.And, by making joint plate and gusset littler, can reduce the quantity of product made from steel and reduce building structure and the required material/constructions cost of civil engineering structure.
And, the present invention has avoided being applied to the surface that will engage product made from steel or removing scales or produce the needs of red rust for the shot blast with routine, thereby makes to handle with the artificial and time of reducing and will engage product made from steel and reduce production costs sharp.And the present invention has also avoided handling the needs that will engage product made from steel that can use with wide variety.In other words, the friction-joining steel plate with preliminary dimension and predetermined form is used for the processing that these will engage product made from steel, or friction-joining steel plate only is inserted in and will engages between the product made from steel, thereby aforesaid high coefficient of friction is provided.Therefore, energy volume production friction-joining steel plate and more effectively reduction production and constructions cost.
In this case, friction-joining steel plate of the present invention preferably has the projection striped from 50 ° to 100 ° tip angle (θ).
In other words, the projection striped on the friction-joining steel plate forms in mode so so that the tip angle θ of projection striped satisfies following formula (2).
50°≦θ≦100°...(2)
Above-mentioned structure allows the tip angle θ of projection striped to be arranged in 50 ° to 100 ° the scope, promptly, the projection striped can form and provide too not sharp-pointed angle and it can easily enter and will engage in the product made from steel, thereby makes the shear strength at the part place that can guarantee the projection striped and the mechanical slip resistance showed to degree fully.And the tip angle θ that can be arranged so that the projection striped is set to 75 ° or bigger and 90 ° or littler (75 ° ≦ θ ≦ 90 °).
And friction-joining steel plate of the present invention preferably has and is set to 0.5 or littler stress-strength ratio (σ/σ
Mb).This stress-strength ratio (σ/σ
Mb) by using the tensile breaking strength (σ that will engage product made from steel
Mb) obtain except that the compressive force owing to fastening apparatus acts on the compressive stress (σ) that will engage on the product made from steel.
In this case, the width dimensions that will engage the formed depression of product made from steel (B) of depression removes the stress intensity that is obtained such as the caused compressive force of high-strength bolt (N) by fastening apparatus will engage product made from steel surperficial the time by entering with the overall length dimension (L) of friction-joining steel plate upper process striped with at the projection striped to act on the compressive stress (σ) that will engage on the product made from steel.That is, it means the stress intensity of being represented by the relation of σ=N/ (LB).Therefore, the form that engage the size of material type, friction-joining steel plate of product made from steel and projection striped is set up so that act on the stress in compression sigma and the tensile breaking strength σ that will engage on the product made from steel in mode so
MbSpecific energy satisfy following formula (3).
σ/σ
mb≤0.5...(3)
According to above-mentioned structure, act on the stress in compression sigma that will engage on the product made from steel and be set to less than tensile breaking strength σ
MbHalf.In other words, the quantity of the size of friction-joining steel plate and projection striped and length are according to type (the tensile breaking strength σ that will engage product made from steel
Mb) and the type of the bolt that uses come suitably to determine, thereby make and can guarantee shear strength and will engage the upset intensity of product made from steel and the mechanical slip resistance is showed to degree fully.
As mentioned above, friction-joining steel plate of the present invention can be constructed so that and can satisfy whole formula (1), (2) and (3) simultaneously.Yet, can be constructed so that at least two that satisfy in these formula (1) to (3), and can be constructed so that only satisfy these formula (1) to (3) at least any one.
More specifically, after conscientiously studying, claimant of the present invention has been found that three key elements (parameter), that is, and and by the hardness ratio r of formula (1) expression
h, by the tip angle θ of the striped of the projection of formula (2) expression and by the stress-strength ratio σ/σ of formula (3) expression
MbWhen determining the friction factor of friction-joining steel plate, have very big influence, and the suitable layout of these three key elements can provide big friction factor (for example, 0.9 or bigger friction factor).
So, at SS400 or SS490, just general tensile breaking strength from 400 to the 500 (N/mm that use
2) the rolled steel product, perhaps SM400 or SM490, the rolled steel product that just is used for welded structure (JIS G3106), be used as in the time of to engage product made from steel, can be arranged so that friction-joining steel plate forms with S45C, S48C, S50C or S53C, just, be used for the tensile breaking strength of mechanical structure purposes (JIS G4051) greater than 450 (N/mm
2) carbon steel or the similar product made from steel of Vickers hardness.
And friction-joining steel plate of the present invention can be set to spacing (S) between the projection striped in the scope of 0.8mm to 2.0mm.
And friction-joining steel plate of the present invention can be set to the radius (R of the head portion of projection striped
1) be 0.1mm or littler.
Then, friction-joining steel plate of the present invention can be set to the radius (R of the depression between the projection striped
2) be 0.4mm or bigger.
According to above-mentioned structure, the spacing between the projection striped (S) can be arranged at the scope from 0.8mm to 2.0mm, thereby makes can form a plurality of projection stripeds on two faces of the friction-joining steel plate with preliminary dimension.And, the radius (R of the head portion of projection striped
1) be set to 0.1mm or littler, thereby make and can guarantee easily to enter the acute angle of the projection striped that will engage in the product made from steel and obtain high friction factor.And, the radius (R of the depression between the projection striped
2) being set to 0.4mm or bigger, the intensity as the depression of the base portion of projection striped can increase thus, prevents that the projection striped from breaking owing to shearing when standing surface friction drag, thereby stable friction factor is provided.
And, in friction-joining steel plate of the present invention, the width dimensions (B) that the projection striped enters the part of the surface that will engage product made from steel be set between the projection striped spacing (S) about 1/3.
According to above-mentioned structure, engage product made from steel and friction-joining steel plate intensity and hardness suitably are set, its mode make the projection striped enter the width dimensions of a part of wherein locating (B) equal between the projection striped spacing (S) 1/3, thereby make and can guarantee the degree that the projection striped can enter and to increase friction factor.And the projection striped does not enter the width dimensions of the part of the surface that will engage product made from steel to be guaranteed, thereby makes and can prevent to engage product made from steel because shearing is out of shape or is broken and showed stable friction factor.
And friction-joining steel plate of the present invention can form with the plane shape of the circle that comprises the axle place that is centered on fastening apparatus, and the diameter of friction-joining steel plate is 2.5 times of shaft diameter of fastening apparatus.
According to above-mentioned structure, because friction-joining steel plate provides the size that comprises by the circle area surrounded, its diameter is 2.5 times of shaft diameter of fastening apparatus, the compressive force that is derived from fastening apparatus can act on the friction-joining steel plate that is covered by this zone equably, thereby makes and can obtain stable friction factor.
And friction-joining steel plate of the present invention can be set to, and the distance (H) between the top of the top of a surperficial upper process striped of friction-joining steel plate and another surperficial upper process striped of friction-joining steel plate is from the scope of 1.5mm to 2.5mm.
According to above-mentioned structure, because the distance (H) between the top of projection striped, or the thickness size of friction-joining steel plate, be arranged at from the scope of 1.5mm to 2.5mm, the compressive force that is derived from fastening apparatus is used for crooked friction-joining steel plate, and it can be attached to the surface that will engage product made from steel then securely.Thereby the striped of all projections on the friction-joining steel plate can enter exactly will engage product made from steel, thereby makes and can obtain high friction factor.
And in friction-joining steel plate of the present invention, the projection striped can form by any processing method, such as rolling, cutting or casting.
In friction-joining steel plate of the present invention, friction-joining steel plate can quench after the projection striped forms.
According to above-mentioned structure, the projection striped can form by any processing method, such as rolling, cutting or casting, and any desired processing method can select with the joint steel plate that creates friction according to the quantity or the type of product made from steel, thereby makes and can reduce production costs.And, because the enforcement after the projection striped forms of quenching, can increase and the hardness at the part place of stable projection striped.
And, friction-joining steel plate of the present invention can by use adhesive tape or use antirust spray paint to stick to engage one of product made from steel.
And, in friction-joining steel plate of the present invention, adhesive tape is to adhere to will engage one of product made from steel so that cover the aluminium strip of friction-joining steel plate, and remain with another at the face that covers by aluminium strip and will engage under the contacted state of product made from steel when using fastening apparatus fastening will engaging one of product made from steel and another, another projection striped that will engage on the side of product made from steel makes the aluminium strip fracture, thereby enter another and will engage product made from steel, and will engage projection striped on the side of one of product made from steel and enter and to engage one of product made from steel.
According to above-mentioned structure, friction-joining steel plate is because adhesive tape or the antirust adhesive force that sprays paint and stick in advance and will engage one of product made from steel.Promptly, the friction-joining steel plate not lifting position on the structure place is sticking but be positioned at position that steel plate can easily manage such as factory or ground interim stocking yard, thereby makes and friction-joining steel plate can be arranged under management condition so so that suitably determine the orientation, position, quantity etc. of projection striped.So, be used for covering and when clinging friction-joining steel plate at adhesive tape (for example aluminium strip) or antirust spraying paint, it is fastening by fastening apparatus to engage product made from steel, adhesive tape etc. breaks at the part place of friction-joining steel plate upper process striped thus, projection striped projection will engage product made from steel to enter, thereby makes and can obtain aforesaid high coefficient of friction.
And the axle that friction-joining steel plate of the present invention can provide a plurality of permission fastening apparatus passes wherein jack, wherein being recessed to form to darker than the depression that is positioned at other positions of place, the neutral position between jack between the projection striped.
According to above-mentioned structure, the depression at the place, neutral position between jack is darker, thereby makes as long as need just can friction-joining steel plate be broken subregion in the position of this depression.In this case, for example, depression can form enough dark maybe can form enough dark so that it can be broken by proper implements so that friction-joining steel plate can strike with the hand broken.As mentioned above, make the neutral position place of friction-joining steel plate between jack break, friction-joining steel plate can be broken and is subregion thus, even under the inconsistent situation of jack pitch of hole pitch that is formed at the fastening apparatus that will engage on the product made from steel and friction-joining steel plate, and steel plate can be arranged as consistent with the hole pitch that will engage product made from steel.And if it is consistent with the jack pitch of friction-joining steel plate to engage the hole pitch of product made from steel, friction-joining steel plate can be arranged under not breaking to subregion.
And friction-joining structure of the present invention is that wherein arbitrary friction-joining steel plate is inserted in and will engages between the product made from steel and scales or red rust is formed on the surface that will engage product made from steel or shot blast, sand milling or antirust spraying paint are used so far friction-joining structure.
According to the present invention, the aforementioned effect of friction-joining steel plate can be provided, that is, the friction factor that uses in the design can be set to higher to realize rational design under high degree of accuracy.And, the quantity of bolt can reduce or joint plate etc. littler, thereby material/being configured to instinct reduces effectively.And, scales or antirust spraying paint when being applied to engage product made from steel surperficial, projection striped on the friction-joining steel plate can pass scales or antirust spray paint to enter to engage product made from steel, thereby make stable friction factor can be provided, and no matter will engage the surface state of product made from steel.And because the present invention avoided removing scales or the antirust needs that spray paint, it is unnecessary being used for after engaging that antirust modification sprays paint, and help to reduce relevant with structure work manually and the time.
And, in friction-joining structure of the present invention, can be arranged so that two or more friction-joining steel plates are overlapping and be inserted in and will engage between the product made from steel.
According to above-mentioned structure, exist not simultaneously will engaging between the product made from steel on thickness size, the quantity of friction-joining steel plate is suitably regulated according to this difference, and is inserted in and will engages between the product made from steel, thereby makes and can handle the various combinations that will engage product made from steel.The present invention has also avoided providing the needs of all thickness size product made from steel, thereby makes and can reduce material/constructions cost.So, not by joints such as welding even want overlapping friction-joining steel plate, be formed at two projection stripeds on the steel plate and match each other, so that can not depart from and suitably transmit surface friction drag towards shear direction.
Above-mentioned friction-joining steel plate of the present invention and friction-joining structure can be applied to various frictional engagement parts with low cost and can also increase surface friction drag reliably, thereby realize reasonably design.
Description of drawings
Fig. 1 is the sectional view that embodiment's friction-joining structure among the present invention is shown;
Fig. 2 (A) and (B) be respectively front view and the sectional view that is illustrated in the friction-joining steel plate that uses in the friction-joining structure;
Fig. 3 is the amplification sectional view that the major component of friction-joining structure is shown;
Fig. 4 (A) and (B) be respectively front view and the sectional view that the friction-joining steel plate of modified example among this embodiment is shown;
Fig. 5 (A) and (B) be respectively front view and the sectional view that the friction-joining steel plate of modified example among this embodiment is shown;
Fig. 6 is the front view that the friction-joining steel plate of modified example among this embodiment is shown;
Fig. 7 is the sectional view that the friction-joining structure of modified example among this embodiment is shown;
Fig. 8 (A), (B) and (C) be the sectional view of fracture mode that the friction-joining structure of one embodiment of the present of invention is shown;
Fig. 9 is the chart that the trend of the friction factor of each fracture mode among this embodiment is shown;
Figure 10 is the chart that the friction factor of each stress-strength ratio among this embodiment is shown;
Figure 11 illustrates the chart of friction factor with respect to the addendum cone angle of projection striped among this embodiment;
Figure 12 illustrates the chart of friction factor with respect to the stress-strength ratio among this embodiment;
Friction factor was with respect to the chart of slippage when Figure 13 was the tensile breaking strength test that illustrates in this embodiment;
Figure 14 is the photo that embodiment 1 friction-joining steel plate among the present invention is shown;
Figure 15 is the sectional view that embodiment 1 friction-joining steel plate is shown;
Figure 16 is the chart that the test result that obtains by the friction-joining steel plate that uses embodiment 1 is shown;
Figure 17 is the photo that embodiment 2 friction-joining steel plate among the present invention is shown;
Figure 18 is the sectional view that embodiment 2 friction-joining steel plate is shown;
Figure 19 is the chart that the test result that obtains by the friction-joining steel plate that uses embodiment 2 is shown;
Figure 20 is the photo that the friction-joining steel plate of comparative example of the present invention is shown;
Figure 21 is the chart that the test result that obtains by the friction-joining steel plate that uses comparative example is shown;
Figure 22 illustrates the sectional view that the friction-joining steel plate of embodiments of the invention 3 wherein is in the state that is temporarily clung (tacked);
Figure 23 is the sectional view that is illustrated in embodiment 3 the fastened state afterwards of friction-joining steel plate; And
Figure 24 is the chart that the test result that obtains by the friction-joining steel plate that uses embodiment 3 is shown.
Embodiment
Hereinafter, provide the description of embodiments of the invention with reference to the accompanying drawings.
Fig. 1 is the sectional view that friction-joining structure of the present invention is shown.Fig. 2 (A) and Fig. 2 (B) are respectively front view and the sectional views that the friction-joining steel plate 10 that is used for friction-joining structure is shown.Fig. 3 is the amplification sectional view that the pith of friction-joining structure is shown.
In Fig. 1 to Fig. 3, friction-joining structure of the present invention is so so that a pair of steel plate 1A and 1B (they are to engage product made from steel) are fastening by a plurality of high-strength bolt 2A and nut 2B (fastening apparatus just), thereby steel plate 1A and 1B are by the compressive force frictional engagement that is derived from these fastening apparatus, and friction-joining steel plate 10 inserts between steel plate 1A and the 1B corresponding to each high-strength bolt 2A.
In this case, this can comprise that to steel plate 1A and 1B its light plate 1A is flange or the web that constitutes the shaped steel (H shaped steel etc.) of structural framing, and steel plate 1B is the situation of joint plate (fish plate) or gusset, and its light plate 1A and 1B are the part of shaped steel or the situation of steel plate self.So, engage product made from steel and comprise the rolled steel product of general use and be used for welded rolled steel product that they have roughly 400 to 500 (N/mm by use
2) SS400, SS490, the formation such as SM400, SM490 of tensile breaking strength.And, high-strength bolt 2A and nut 2B comprise can with predetermined compressive force (bolt axial tensile force) N on a pair of steel plate 1A and the approximating direction of 1B with fastening those of any fastening means that provides.
As shown in Figure 2, friction-joining steel plate 10 all provides the striped 11 of a plurality of projections on two faces, and they are thin sheet form and form continuously abreast and provide and allow high-strength bolt 2A to pass wherein jack 12 normally.Friction-joining steel plate 10 usefulness S45C, tensile breaking strength are greater than 450 (N/mm
2) the formation such as carbon steel product that are used for mechanical realization, and plane shape is the size of axle (being positioned at the center of the jack 12) circle on every side that comprises high-strength bolt 2A, the diameter of this circle is 2.5 times of shaft diameter (φ) of high-strength bolt 2A, in other words, a side length is the general square shape shape of A (A 〉=2.5 φ).And the distance (H) (it is the thickness size of friction-joining steel plate 10) between the top of the projection striped 11 on two faces is set to about 2.0mm, and projection striped 11 is arranged as vertical with the direction of extension (horizontal direction among Fig. 1) of steel plate 1A and 1B.
Projection striped 11 on the friction-joining steel plate 10 forms by cold rolling or hot rolling.And, after forming, implements the projection striped to quench, thus Vickers hardness (the H at the part place of projection striped 11
Vh) be set to lip-deep Vickers hardness (H greater than steel plate 1A and 1B
Vm) above 3 times.That is, the Vickers hardness between the surface of the projection striped 11 on the friction-joining steel plate 10 and steel plate 1A and 1B is than (r
h=H
Vh/ H
Vm) be arranged so that r
h〉=3.According to above-mentioned friction-joining steel plate 10, owing to be derived from the compressive force (N is with reference to Fig. 1) of high-strength bolt 2A, projection striped 11 can enter the surface of steel plate 1A and 1B, thereby provides high surface friction drag between steel plate 1A and 1B.Notice that projection striped 11 is not limited to by those of rolling formation, but can comprise those that form by cutting or casting.
Below, provide the description of the concrete structure of friction-joining steel plate 10 with reference to Fig. 3.
Projection striped 11 on the friction-joining steel plate 10 is that addendum cone angle (θ) that the spacing (S) between the wherein contiguous projection striped 11 is set to about 1.0mm and projection striped 11 is arranged on those from 50 ° to 100 ° scope.And, the radius (R of the head portion of projection striped 11
1) be set to the radius (R of the depression between 0.1mm or littler and the projection striped 11
2) be set to 0.4mm or bigger.And, about the degree that projection striped 11 enters steel plate 1A and 1B, the width dimensions of the part that they entered (B) be set between the projection striped 11 spacing (S) about 1/3.
And, owing to the compressive force that tightens high-strength bolt 2A (N) acts on compressive stress (σ) on steel plate 1A and the 1B with respect to the tensile breaking strength (σ of steel plate 1A and 1B
Mb) be set to 0.5 or littler, i.e. stress-strength ratio σ/σ
Mb≤ 0.5.In this case, act on width dimensions (B) that compressive stress (σ) on steel plate 1A and the 1B refers to the part that overall length dimension (L=∑ A) with friction-joining steel plate 10 upper process stripeds 11 and projection striped 11 entered and remove stress intensity sigma=N/ (LB) that the compressive force (N) of high-strength bolt 2A is obtained.
In above-mentioned friction-joining structure, this programmed sequence of operations can be used to make passes through to use high-strength bolt 2A and nut 2B before construction location is fastening at steel plate 1A and 1B, and friction-joining steel plate 10 is bonded at the pre-position of steel plate 1A or steel plate 1B by using adhesive tape, tackiness agent etc. temporarily.Even be stuck part as mentioned above at friction-joining steel plate 10, high-strength bolt 2A is used for fastening steel plate 1A and 1B, and the projection striped 11 on the friction-joining steel plate 10 can penetrate adhesive tape or tackiness agent to enter the surface of steel plate 1A and 1B thus.
And scales or red rust are formed on the whole surface of steel plate 1A and 1B, and alternatively, shot-peening, sand milling or antirust spraying paint are applied to this.As mentioned above, even scales forms or antirust spraying paint is applied to the whole surface of steel plate 1A and 1B, promptly, with the position of arranging that friction-joining steel plate 10 is identical, high-strength bolt 2A is used for fastening steel plate 1A and 1B, and the projection striped 11 on the friction-joining steel plate 10 can penetrate scales or antirust spraying paint to enter the surface of steel plate 1A and 1B thus.
And friction-joining steel plate can not only comprise the friction-joining steel plate 10 that forms with the general square shape shape, and comprise as following Fig. 4 (A) to shown in Figure 6 with various forms available those.
Fig. 4 (A), Fig. 4 (B) and Fig. 5 (A), Fig. 5 (B) illustrate about the friction-joining steel plate 10A of modified example of the present invention and front view and the sectional view of 10B.Fig. 6 is the front view that illustrates about the friction-joining steel plate 10C of modified example of the present invention.
As friction-joining steel plate 10, friction-joining steel plate 10A shown in Fig. 4 (A) and Fig. 4 (B) provides the striped 11 of a plurality of projections on two faces, their normally lamellar and formation continuously in parallel to each other, still the difference with friction-joining steel plate 10 is that plane shape is that its diameter of (being positioned at the center of jack 12) around the axle of high-strength bolt 2A is 2.5 times a roundel of the shaft diameter of high-strength bolt 2A.Friction-joining steel plate 10A is similar with friction-joining steel plate 10 on other concrete structures.
As friction-joining steel plate 10A, friction-joining steel plate 10B shown in Fig. 5 (A) and Fig. 5 (B) is usually with lamellar formation, its plane shape is that the diameter of (being positioned at the center of jack 12) is about 2.5 times roundel of the shaft diameter (φ) of high-strength bolt 2A around the axle of high-strength bolt 2A, and is that with the difference of friction-joining steel plate 10A and 10 it all provides the stripeds 11 of a plurality of projections that form continuously each other in concentric mode on two surfaces.Friction-joining steel plate 10B is similar with friction-joining steel plate 10 and 10A on other concrete structures.According to above-mentioned friction-joining steel plate 10B, the striped 11 of projection forms in concentric mode, thereby surface friction drag can be in any desired demonstration in the radial direction, and it is preferably applicable to wherein tension force in situation about acting on two or more directions on steel plate 1A and the 1B.And, can obtain the surface friction drag of same degree, even friction-joining steel plate 10B moves to a certain degree rotatably, thereby to have avoided for the needs that friction-joining steel plate 10B temporarily are bonded on the high-strength bolt 2A, this has desirably produced operations improvement.
As friction-joining steel plate 10, friction-joining steel plate 10C shown in Fig. 6 provides the striped 11 of a plurality of projections on two faces, their are thin sheet form and forming continuously in parallel to each other normally, and is that with the difference of friction-joining steel plate 10 it provides two jacks 12 and forms with rectangle usually.So, friction-joining steel plate 10C form place, the side of each jack 12 provide enough big end distance part and Edge Distance partly be included in high-strength bolt 2A spool around (being positioned at the center of jack 12) be about 2.5 times diameter of the shaft diameter (φ) of high-strength bolt 2A.Friction-joining steel plate 10C is similar with friction-joining steel plate 10 on other concrete structures.According to above-mentioned friction-joining steel plate 10C, jack 12 forms a plurality of, thereby, can prevent wherein friction-joining steel plate 10C will be on the high-strength bolt 2A that tightens together the common rotation of rotation to avoid for the needs that temporarily cling friction-joining steel plate 10C.Therefore, expectation produces operations improvement.
And preferably, two places, neutral position between the jack 12 that are recessed between the striped 11 of projection form darker than the depression of other positions in friction-joining steel plate 10C.Thus, it is two subregions that friction-joining steel plate 10C is broken in the position that forms darker depression as required, even and the pitch of the jack 12 of the pitch of the bolt hole of steel plate 1A and 1B and friction-joining steel plate 10C is inconsistent, the friction-joining steel plate 10C that separates can be arranged as consistent with bolt hole.
And, the friction-joining structure of present embodiment can not only comprise wherein friction-joining steel plate 10 structure that each a slice ground inserts between steel plate 1A and 1B as shown in Figure 1, and comprises a plurality of as shown in Figure 7 friction-joining steel plate 10 overlapping and insertion structures therebetween.
Fig. 7 is the sectional view of modified example that the friction-joining structure of present embodiment is shown.
Friction-joining structure shown in Figure 7 be so so that a pair of horizontal steel plate 1A and 1C (promptly will engage product made from steel) via friction-joining steel plate 10, remain between a pair of vertical steel plate 1B (i.e. the product made from steel that will engage), thereby, this to vertical steel plate 1B by tightening high-strength bolt 2A and nut 2B engages.Here, steel plate 1A and steel plate 1C differ from one another on thickness size, or steel plate 1A is thinner than steel plate 1C.Two friction-joining steel plates 10 are overlapping and insert between steel plate 1A and the top steel plate 1B.These two friction-joining steel plates 10 are overlapping so that their projection striped 11 is fitted to each other under state so, and are constructed so that friction-joining steel plate 10 does not depart from each other.
Here, as shown in Figure 7, wherein a plurality of friction-joining steel plate 10 is overlapping and insert therebetween friction-joining structure and not only comprise its light plate 1A and 1C different structure on thickness, and comprise a pair of horizontal shaped steel (for example H shaped steel) different structure on height dimension, for example, one of shaped steel is rolling H shaped steel, and another is a structure H shaped steel.In other words, the fair amount of friction-joining steel plate 10 can come overlapping and correspondingly inserts between the outside (it is the flange of the less shaped steel of height dimension) and steel plate 1B (it is a joint plate) of steel plate 1A according to the difference of height dimension, and between the inside of steel plate 1C (it is the flange of the bigger shaped steel of height dimension) and the steel plate 1B (it is a joint plate).
The last surface construction of present embodiment can provide following effect.
(1) because the surface that the part of the projection striped 11 on the friction-joining steel plate 10 provides than steel plate 1A and 1B exceeds the Vickers hardness of twice at least, projection striped 11 can more easily enter among steel plate 1A and the 1B, thereby and act between steel plate 1A and the 1B, thereby make and to enlarge markedly friction factor between steel plate 1A and the 1B by friction-joining steel plate 10 by the caused surface friction drag of mechanical slip resistance of the projection striped 11 that enters.Therefore, friction-joining structure is by easily constituting from the less skid resistance mechanism of variation theoretical or affirmation of experiment viewpoint and friction factor.Therefore can in design, friction factor be designed to have high degree of accuracy and high numerical value, for example, 0.9 friction factor or higher (preferably 1.0 or higher) and realized rational design.
(2) so, friction factor can be set to higher reducing quantity or its diameter of miniaturization of high-strength bolt 2A and nut 2B, thereby makes its local losses of area that can suppress steel plate 1A and 1B to minimum degree.And, can be littler as the size of the steel plate 1A (or steel plate 1B) of joint plate etc., thereby, the quantity that can reduce product made from steel and reduce building structure and the required material/constructions cost of civil engineering structure made.
(3) and, avoided the surface use shot blast of steel plate 1A and 1B or the needs of sanded, or in order to remove scales or to produce red rust, thereby made and can handle steel plate 1A and 1B and reduce production costs sharp with the artificial and time that reduces.And owing to also avoided handling a large amount of steel plate 1A that can use with wide variety and the needs of 1B, common friction-joining steel plate 10 is used for these steel plates 1A and 1B.Therefore, energy volume production friction-joining steel plate 10 and more effectively reduction production/constructions cost.
(4) and, because form (interval S between tip angle θ, the projection striped 11, the radius R of head portion of friction-joining steel plate 10 upper process stripeds 11
1, the depression radius R
2) determine that suitably projection striped 11 provides the acute angle that can easily enter the surface of steel plate 1A and 1B.And, allow the mechanical slip resistance to represent to enough degree, the part of projection striped 11 guarantees to cut intensity simultaneously.And, because the distance H between the top of projection striped 11 or the thickness size of friction-joining steel plate 10 are set to about 2.0mm, the compressive force N that is derived from high-strength bolt 2A is used for crooked friction-joining steel plate 10, and it can be attached to the surface of steel plate 1A and 1B then securely.Thereby the whole projection stripeds 11 on the friction-joining steel plate 10 can enter among steel plate 1A and the 1B exactly, thereby make and can obtain high friction factor.
(5) and, because being positioned at the width dimensions B of a part that projection striped 11 enters the surperficial part of steel plate 1A and 1B suitably is provided with, guarantee that degree that projection striped 11 enters is to increase friction factor, guarantee to prevent that steel plate 1A and 1B are out of shape owing to shear action or break and be positioned at the width dimensions of a part that projection striped 11 do not enter the surperficial part of steel plate 1A and 1B, thereby make and to represent surface friction drag with stable manner.And, because the stress in compression sigma that acts on steel plate 1A and the 1B is set to less than tensile breaking strength σ
MbHalf, can guarantee the shearing strength of steel plate 1A and 1B and upset intensity and the mechanical slip resistance represented to enough degree.
(6) in addition, even formed scales or antirust spraying paint is applied to the surface of steel plate 1A and 1B, projection striped 11 on the friction-joining steel plate 10 can enter and penetrate scales or antirust spraying paint, thereby makes stable friction factor can be provided, and no matter the surface state of steel plate 1A and 1B.And, not only avoid for removing scales or the antirust needs that spray paint, but also after engaging, provide antirust polishing to spray paint, this also help structure work relevant manually and the reduction of time.
Can understand, the invention is not restricted to top embodiment, but comprise can obtain target of the present invention any other the structure etc., such as following modified example.
In the above embodiments, structure is exemplified as and makes a plurality of projection stripeds 11 form continuously abreast in one direction or form continuously in concentric mode, as friction-joining steel plate 10,10A, 10B and 10C.Yet friction-joining steel plate can provide a plurality of projection stripeds, and they are parallel to each other and maybe can be formed with a plurality of these parallel projection stripeds in two ways or the combination of multiple mode orientation.And in the above embodiments, structure also is exemplified as feasible one or two jack 12 that forms, as friction-joining steel plate 10,10A, 10B and 10C.Yet friction-joining steel plate can provide three or more jacks.
Implementing optimum configuration of the present invention and method thereof provides in the description of so far carrying out.Yet, the invention is not restricted to this.In other words, although the present invention especially illustrates and explains with regard to specific embodiment, for a person skilled in the art obviously, the foregoing description can be revised under the scope that does not break away from technological thought of the present invention and claim with regard to shape, material, quantity and other details in many ways.
Therefore, on regard to shape and material specific descriptions only be to provide in order to be convenient to understand the present invention by reference example, and should be understood to not limit the present invention.Thereby any description of not refering in particular to the part or all of element of shape and material should be included among the present invention.
(example)
Hereinafter, the description of the example of the friction-joining structure of verifying present embodiment will be provided experimentally.
In following examples, implement the tensile breaking strength test, wherein friction-joining steel plate 10 and steel plate 1A and 1B are as shown in Figure 1 by using high-strength bolt 2A and nut 2B fastening.
In this case, Vickers hardness is than (r
h) provide as first parameter, the tip angle of projection striped 11 (θ) provides as second parameter, and stress-strength ratio (σ/σ
Mb) provide as the 3rd parameter.So, implement the tensile breaking strength test by allowing three parameters to change, thus and friction factor (slip coefficient) μ of measurement acquisition
F
(first parameter: Vickers hardness compares r
h)
Vickers hardness compares r
hBe the Vickers hardness (H at the part place of friction-joining steel plate 10 upper process stripeds 11
Vh) with the lip-deep Vickers hardness (H of steel plate 1A and 1B
Vm) ratio (r
h=H
Vh/ H
Vm), and be set to 6 values, that is, and about 1.7,1.9,2.6,3.2,4.0 and 4.3.
(second parameter: the tip angle θ of projection striped)
The tip angle θ of projection striped 11 is set to from 30 ° to 120 ° scope.
(the 3rd parameter: stress-strength ratio σ/σ
Mb)
Stress-strength ratio σ/σ
MbBe owing to the compressive force that is derived from high-strength bolt 2A (N) acts on compressive stress (σ) and steel plate 1A on steel plate 1A and the 1B and the tensile breaking strength (σ of 1B
Mb) ratio, and be set to 6 values, that is, about 0.2,0.4,0.5,0.6,0.8 and 1.0.
In this case, acting on compressive stress (σ) on steel plate 1A and the 1B refers to the width dimensions (B) that enters a part wherein by overall length dimension (L=∑ A) and projection striped 11 with the projection striped 11 on the friction-joining steel plate 10 and removes stress intensity sigma=N/ (LB) that the compressive force (N) of high-strength bolt 2A obtains.And, in the following test result that provides, use following symbol, that is, and the expression of 0.2 usefulness white triangles (△); 0.4 represent with white square (); 0.5 represent with white circle (zero); 0.6 represent with black triangle (▲); 0.8, be used for each stress-strength ratio σ/σ with black square (■) expression and the expression of 1.0 usefulness black circles (●)
Mb
(test result)
At first, confirm three fracture modes according to the value of each parameter.Coefficientoffriction for each fracture mode acquisition
FValue, find certain trend.Fig. 8 (A), (B) thereby and (C) three fracture modes confirming are shown, and Fig. 9 illustrates coefficientoffriction in each fracture mode
FThe trend of value.In Fig. 9, near linear is used for representing coefficientoffriction in each fracture mode (A to C)
FLower limit, and transverse axis (X-axis) compares r as Vickers hardness
hProvide and the longitudinal axis (Y-axis) as coefficientoffriction
FProvide.
The projection striped 11 that Fig. 8 (A) illustrates on the friction-joining steel plate 10 wherein enters the fracture mode (fracture mode A) that wherein part place stands shear failure at the projection striped.Given as symbol A among Fig. 9, compare r according to Vickers hardness
hRising and the coefficientoffriction that obtains
FTrend towards increasing.This fracture mode A compares r in Vickers hardness
hFor about 3 or more hour significantly confirm.
Fig. 8 (B) illustrates its light plate 1A and 1B stand shear failure at the top end of projection striped 11 fracture mode (fracture mode B).Given as symbol B among Fig. 9, the coefficientoffriction of acquisition
FTend to constant and very low, and no matter Vickers hardness compares r
hThis fracture mode B is at stress-strength ratio σ/σ
MbAbout 0.8 or confirm significantly when higher.
Fig. 8 (C) is illustrated in steel plate 1A and the 1B fracture mode (fracture mode C) by the part place of projection striped 11 upsets.Given as symbol C among Fig. 9, the coefficientoffriction of acquisition
FTend to constant and very high, and no matter Vickers hardness compares r
hThis fracture mode C compares r in Vickers hardness
hBe about 3 or higher and stress-strength ratio σ/σ
MbBe about 0.5 or confirm more hour significantly.
The tip angle θ that Figure 10 is illustrated in projection striped 11 covers each Vickers hardness when being 90 ° and compares r
hWith each stress-strength ratio σ/σ
MbThe result.
Figure 10 wherein draws for each stress-strength ratio σ/σ
MbAnd the chart of the test result that obtains, and transverse axis (X-axis) compares r as Vickers hardness
hProvide and the longitudinal axis (Y-axis) as coefficientoffriction
FProvide, and near linear is used for representing each stress-strength ratio σ/σ
MbCoefficientoffriction
FLower limit.
From Figure 10 clearly, if Vickers hardness compares r
hBe 3 or bigger and stress-strength ratio σ/σ
MbBe 0.5 or littler, coefficientoffriction then
FSurpass 1.0.And, clearly, if Vickers hardness compares r
hBe 2.5 or bigger and stress-strength ratio σ/σ
MbBe 0.6 or littler, coefficientoffriction then
FBasically surpass 0.9.And, clearly, if Vickers hardness compares r
hBe 2 or bigger and stress-strength ratio σ/σ
MbBe 0.8 or littler, coefficientoffriction then
FBasically surpass 0.7.
Figure 11 illustrates for the coefficientoffriction of each parameter from the tip angle θ acquisition of projection striped 11
FLower limit.
Figure 11 is that wherein near linear is used for representing the chart of the lower limit of friction factor, and transverse axis (X-axis) provides as the tip angle θ of projection striped 11 and the longitudinal axis (Y-axis) as coefficientoffriction
FProvide.
Given as symbol A among Figure 11, the coefficientoffriction of acquisition
FTrend towards increasing for fracture mode A along with the increase of tip angle θ.That is, clearly, the tip angle θ of projection striped 11 is big more, and projection striped 11 is impossible more to stand shear failure, thereby causes the surface friction drag of increase.
On the other hand, given as symbol C among Figure 11, under the situation of fracture mode C, the coefficientoffriction of acquisition
FTrend towards reducing along with the increase of tip angle θ.That is, clearly, the tip angle θ of projection striped 11 is big more and shear strength projection striped 11 is high more, and the part that steel plate 1A and 1B enter may be overturn more, thereby causes that surface friction drag reduces.
Therefore, clearly, in fracture mode A and C, obtain big coefficientoffriction
F(μ
F〉=1.0) the tip angle θ that locates is in from 50 ° to 100 °.And, when friction factor is determined according to the intensity of steel plate 1A and 1B and prevented projection striped 11 shear failures (fracture mode C), or obtain 1.0 or bigger coefficientoffriction in simple mode for the cause of design
FThe time, preferably the tip angle θ of projection striped 11 is arranged in 75 ° to 90 ° the scope.
Figure 12 wherein draws the coefficientoffriction that is obtained
FThe chart of value, and transverse axis (X-axis) is as stress-strength ratio σ/σ
MbProvide and the longitudinal axis (Y-axis) as coefficientoffriction
FProvide, and near linear is used for representing lower limit.Figure 13 is that wherein near linear is used for representing each stress-strength ratio σ/σ
MbThe chart of test result, and the slippage of transverse axis (X-axis) when testing as tensile breaking strength provides and the longitudinal axis (Y-axis) as coefficientoffriction
FProvide.The tip angle θ that Figure 12 and Figure 13 are illustrated in projection striped 11 is that 90 ° and Vickers hardness compare r
hBe 3 or the result that obtains when bigger, and Figure 13 illustrate Vickers hardness r
hIt is about 3.2 o'clock situation.
From Figure 12 clearly, if stress-strength ratio σ/σ
MbBe 0.5 or littler, coefficientoffriction then
FSurpass 1.0.Also clearly, if stress-strength ratio σ/σ
MbSurpass 0.5, then coefficientoffriction
FAlong with stress-strength ratio σ/σ
MbIncrease and reduce.That is, clearly, stress-strength ratio σ/σ
MbBe 0.5 or littler scope represent fracture mode C and stress-strength ratio σ/σ
MbScope above 0.5 is represented fracture mode B.
And, as shown in figure 13, clearly, if stress-strength ratio σ/σ
MbBe 0.5 or littler, coefficientoffriction then
FExpression 1.0 or bigger high value and slippage keeps lowlyer or about 1mm or littler.
Therefore, clearly, the Vickers hardness H of friction-joining steel plate 10 upper process stripeds 11
VhWith the lip-deep Vickers hardness H of tip angle θ according to steel plate 1A and 1B (will engage product made from steel)
VmWith tensile breaking strength σ
MbSet up, its mode is for making Vickers hardness compare r
hBe 3 or bigger, the tip angle θ of projection striped 11 is (more preferably from 75 ° to 90 °) and stress-strength ratio σ/σ from 50 ° to 100 °
MbRemain 0.5 or littler (fracture mode C), thereby make and to obtain 1.0 or bigger coefficientoffriction
F
Below, Figure 14 to Figure 21 illustrates wherein that friction-joining steel plate 10 and steel plate 1A and 1B keep tightening to implement the result of tensile breaking strength test by using high-strength bolt 2A and nut 2B.
Here, embodiment of the present invention will be described 1 (Figure 14 to Figure 16), embodiment 2 (Figure 17 to Figure 19) and their comparative example (Figure 20 and Figure 21).
And, in each of embodiment and comparative example, the material characteristics of the material characteristics of friction-joining steel plate 10 (strength of materials and Vickers hardness) and manufacture method and steel plate 1A and 1B and surface treatment is similar and the form of friction-joining steel plate 10 upper process stripeds 11 as unique parameter of implementing the tensile breaking strength test.And, show graphically by using the slippage (slip coefficient of the direction that tension force that steel plate 1A and 1B are stretched towards the direction with compressive force N quadrature and steel plate 1A and 1B stretch in the position of friction-joining steel plate 10, friction factor) value that is obtained except that the introducing axial tensile force (compressive force N) that is tightened by high-strength bolt 2A and nut 2B, its test result is shown in Figure 16, Figure 19 and Figure 21.
(embodiment 1)
Figure 14 is the photo that embodiment 1 friction-joining steel plate is shown.Figure 15 is the sectional view that embodiment 1 friction-joining steel plate 10A is shown.Figure 16 is the chart that the test result that obtains by the friction-joining steel plate 10A that uses embodiment 1 is shown.
As shown in figure 15, embodiment 1 friction-joining steel plate 10A is so so that projection striped 11 is formed on the front and back symmetrically, spacing (S) between the adjacent projection striped 11 is set to about 1.5mm, and the distance (H) between the top of front and back upper process striped 11 is set to about 1.5mm.And in friction-joining steel plate 10A, the tip angle of projection striped 11 (θ) is set to the radius (R of the head portion of about 90 ° and projection striped 11
1) be set to 0.1mm or littler (approximately 0.1mm), and the radius (R of the depression between the projection striped 11
2) be set to 0.4mm or bigger (approximately 1.0mm).
Above-mentioned friction-joining steel plate 10A according to embodiment 1, among the load-deformation curve a from Figure 16 clearly, in slippage is 0.5mm or more hour, friction factor surpasses 1.0, and surpass 0.5mm and reach 1.0mm up to slippage, friction factor can not be lower than 1.0, thereby favourable mechanical property is provided.
(embodiment 2)
Figure 17 is the photo that embodiment 2 friction-joining steel plate is shown.Figure 18 is the sectional view that embodiment 2 friction-joining steel plate 10B is shown.Figure 19 is the chart that the result who obtains by the friction-joining steel plate 10B that uses embodiment 2 is shown.
As shown in figure 18, embodiment 2 friction-joining steel plate is so so that projection striped 11 is formed on the front and back symmetrically, spacing (S) between the adjacent projection striped 11 is set to about 0.8mm, and the distance (H) between the top of front and back upper process striped 11 is set to about 1.5mm.And in friction-joining steel plate 10B, the tip angle of projection striped 11 (θ) is set to the radius (R of the head portion of about 75 ° and projection striped 11
1) be set to 0.1mm or littler (approximately 0.1mm), and the radius (R of the depression between the projection striped 11
2) be set to 0.4mm or bigger (approximately 0.4mm).
Above-mentioned friction-joining steel plate 10B according to embodiment 2, from the load-deformation curve b of Figure 19 clearly, in slippage is 0.5mm or more hour, friction factor is 1.0 basically, and surpass 0.5mm and reach 1.0mm up to slippage, friction factor can not be lower than 1.0, thereby favourable mechanical property is provided.
(comparative example)
Figure 20 is the photo that the friction-joining steel plate of comparative example is shown.Figure 21 is the chart that the result who obtains by the friction-joining steel plate that uses comparative example is shown.
Above-mentioned friction-joining steel plate according to comparative example, from the load-deformation curve c of Figure 21 clearly, in slippage is 0.5mm or more hour, friction factor reaches the peak at 0.75 place basically, and surpass 0.5mm and reach 1.0mm up to slippage, it is about 0.7 that friction factor little by little is reduced to, thereby the mechanical property that is inferior to embodiment 1 and embodiment 2 is shown.
Below, to provide the embodiment's 3 who wherein uses friction-joining steel plate 10D and friction-joining steel plate 1A and 1B description by reference Figure 22 to Figure 24, and friction-joining steel plate 10D temporarily sticks to one of steel plate or steel plate 1A in advance by using aluminium strip T, and another steel plate or steel plate 1B are overlapped in friction-joining steel plate 10D and upward and then come fastening by tightening high-strength bolt 2A and nut 2B.
(embodiment 3)
Figure 22 is the sectional view that the state that embodiment 3 friction-joining steel plate 10D wherein temporarily clung is shown.Figure 23 is the sectional view that embodiment 3 the fastening state afterwards of friction-joining steel plate 10D is shown.Figure 24 is the chart that the result who obtains by the friction-joining steel plate 10D that uses embodiment 3 is shown.
Above-mentioned friction-joining steel plate 10D according to embodiment 3, from the load-deformation curve d of Figure 24 clearly, in slippage is 0.5mm or more hour, friction factor surpasses 1.0, and surpass 0.5mm and reach 1.0mm up to slippage, friction factor can not be lower than 1.0 increase gradually still is shown, thereby favourable mechanical property is provided.
Industrial applicibility
The present invention relates to a kind of being inserted in by the compression stress that is derived from fastening apparatus is frictionally engaged mutually To engage friction-joining steel plate between the product made from steel, this friction-joining steel plate on two faces all Provide a plurality of projection stripeds that are parallel to each other or mutually form continuously with one heart, and provide The jack that has at least one to allow fastening apparatus to insert, wherein the part of projection striped is designed to Vickers hardness is higher than the surface that will engage product made from steel.
Friction-joining steel plate of the present invention can be applied to the various parts that are frictionally engaged with low cost, and And can increase reliably frictional resistance, thereby realize reasonably design.
Claims (17)
1. friction-joining steel plate, it is inserted in by will the engaging between the product made from steel of the mutual frictional engagement of compressive force that is derived from fastening apparatus,
This friction-joining steel plate all provides projection striped in parallel to each other a plurality of or that form continuously in concentric mode mutually on two faces, and is provided with at least one the jack that allows fastening apparatus to insert, wherein
The part of projection striped is designed to the Vickers hardness height than the surface that will engage product made from steel.
2. according to the friction-joining steel plate of claim 1, wherein
The part of projection striped is designed to the high at least twice of Vickers hardness than the surface that will engage product made from steel.
3. according to the friction-joining steel plate of claim 1 or 2, wherein
The tip angle of projection striped (θ) is set to from 50 ° to 100 ° scope.
4. according to the friction-joining steel plate of one of claim 1 to 3, wherein
By using the tensile breaking strength (σ that will engage product made from steel
Mb) remove stress-strength ratio σ/σ that compressive stress (σ) is obtained
MbBe set to 0.5 or littler, compressive stress (σ) is owing to the compressive force of fastening apparatus acts on and will engage on the product made from steel.
5. according to the friction-joining steel plate of one of claim 1 to 4, wherein
Spacing between the projection striped (S) is set to from the scope of 0.8mm to 2.0mm.
6. according to the friction-joining steel plate of one of claim 1 to 5, wherein
Radius (the R of the head portion of projection striped
1) be set to 0.1mm or littler.
7. according to the friction-joining steel plate of one of claim 1 to 6, wherein
Radius (the R of the depression between the projection striped
2) be set to 0.4mm or bigger.
8. according to the friction-joining steel plate of one of claim 1 to 7, wherein
The width dimensions (B) that the projection striped enters the part of the surface that will engage product made from steel be set between the projection striped spacing (S) about 1/3.
9. according to the friction-joining steel plate of one of claim 1 to 8, wherein
Friction-joining steel plate forms plane shape, comprising the circle at the axle place that is centered on fastening apparatus, and
The diameter of friction-joining steel plate is 2.5 times of shaft diameter of fastening apparatus.
10. according to the friction-joining steel plate of one of claim 1 to 9, wherein
Distance (H) between the top of a lip-deep projection striped of friction-joining steel plate and the top at another lip-deep projection striped of friction-joining steel plate is set to from the scope of 1.5mm to 2.5mm.
11. according to the friction-joining steel plate of one of claim 1 to 10, wherein
The projection striped is formed by any processing method, such as rolling, the cutting or the casting.
12. according to the friction-joining steel plate of one of claim 1 to 11, wherein
Friction-joining steel plate quenches after forming the projection striped.
13. according to the friction-joining steel plate of one of claim 1 to 12, wherein
Friction-joining steel plate by use adhesive tape or use antirust spray paint to stick to engage one of product made from steel.
14. according to the friction-joining steel plate of claim 13, wherein,
Adhesive tape is to adhere to will engage one of product made from steel so that cover the aluminium strip of friction-joining steel plate, and
Remain with another at the face that covers by aluminium strip and will engage under the contacted state of product made from steel, when engaging one of product made from steel and another when using fastening apparatus fastening, at the described projection striped that another will engage product made from steel one side aluminium strip is broken, thereby enter described another and will engage product made from steel, and enter described one at described one the projection striped that will engage product made from steel one side and will engage product made from steel.
15. according to the friction-joining steel plate of one of claim 1 to 14, wherein
Friction-joining steel plate forms by the jack that the axle with a plurality of permission fastening apparatus passes, and
Between the projection striped at the neutral position between jack place be recessed to form for the depression than other positions dark.
16. a friction-joining structure, wherein the friction-joining steel plate according to one of claim 1 to 15 inserts and will engage between the product made from steel, wherein
Scales or red rust are formed on the surface that will engage product made from steel, or shot-peening, sand milling or antirust spraying paint are applied on it.
17. according to the friction-joining structure of claim 16, wherein two or more friction-joining steel plates are overlapping and insert and will engage between the product made from steel.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006107457 | 2006-04-10 | ||
| JP107457/2006 | 2006-04-10 | ||
| JP049013/2007 | 2007-02-28 |
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| CN101466955A true CN101466955A (en) | 2009-06-24 |
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ID=40806626
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| CNA2007800214691A Pending CN101466955A (en) | 2006-04-10 | 2007-04-10 | Friction-joining steel plate and friction-joining structure |
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| CN103568400A (en) * | 2013-11-04 | 2014-02-12 | 新誉集团有限公司 | Connecting structure of flexible flaky material with fiber layer and rigid connecting element |
| CN105065421A (en) * | 2015-07-20 | 2015-11-18 | 同济大学 | High-strength bolt connection method and spiral friction-increasing gasket applied to same |
| CN105090223A (en) * | 2015-07-20 | 2015-11-25 | 同济大学 | High-strength bolt connection method and plate-type friction reinforced gasket structure for same |
| CN105697482A (en) * | 2016-04-08 | 2016-06-22 | 南京工业大学 | High-strength bolt anti-sliding connecting method for steel structure |
| CN110762087A (en) * | 2019-10-29 | 2020-02-07 | 于鲁辉 | Novel connecting mode and local reinforcing mode of component or plate |
| CN113236639A (en) * | 2021-04-28 | 2021-08-10 | 东南大学 | Stainless steel plate bolt connecting device and connecting method |
-
2007
- 2007-04-10 CN CNA2007800214691A patent/CN101466955A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568400A (en) * | 2013-11-04 | 2014-02-12 | 新誉集团有限公司 | Connecting structure of flexible flaky material with fiber layer and rigid connecting element |
| CN103568400B (en) * | 2013-11-04 | 2015-07-29 | 新誉集团有限公司 | With the syndeton of fibrolaminar flexible sheet material and rigid connection part |
| CN105065421A (en) * | 2015-07-20 | 2015-11-18 | 同济大学 | High-strength bolt connection method and spiral friction-increasing gasket applied to same |
| CN105090223A (en) * | 2015-07-20 | 2015-11-25 | 同济大学 | High-strength bolt connection method and plate-type friction reinforced gasket structure for same |
| CN105697482A (en) * | 2016-04-08 | 2016-06-22 | 南京工业大学 | High-strength bolt anti-sliding connecting method for steel structure |
| CN110762087A (en) * | 2019-10-29 | 2020-02-07 | 于鲁辉 | Novel connecting mode and local reinforcing mode of component or plate |
| CN113236639A (en) * | 2021-04-28 | 2021-08-10 | 东南大学 | Stainless steel plate bolt connecting device and connecting method |
| CN113236639B (en) * | 2021-04-28 | 2022-07-22 | 东南大学 | Stainless steel plate bolt connecting device and connecting method |
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