CN106965375A - The engaging member and its processing method of a kind of stainless steel and plastics - Google Patents
The engaging member and its processing method of a kind of stainless steel and plastics Download PDFInfo
- Publication number
- CN106965375A CN106965375A CN201710166341.XA CN201710166341A CN106965375A CN 106965375 A CN106965375 A CN 106965375A CN 201710166341 A CN201710166341 A CN 201710166341A CN 106965375 A CN106965375 A CN 106965375A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- plastics
- engaging member
- acid
- steel according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/28—Acidic compositions for etching iron group metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
Abstract
The invention discloses a kind of stainless steel and the engaging member and its processing method of plastics.The engaging member includes stainless steel substrate, after being etched again by corrosive liquid through 400 900 degrees Celsius of heat treatment, some sunk structures are formed with the surface of the stainless steel substrate, the mean depth of the sunk structure is 0.1 30 microns, the mean breadth of the sunk structure is 0.2 15 microns, injection moulding has the part-structure in plastics, the plastics to be embedded in the sunk structure on the stainless steel substrate.Stainless steel substrate in the present invention carries out 400 900 degrees Celsius of heat treatment, forms serious chromium depleted region, then some micron-sized sunk structures are formed in chromium depleted region after being etched via corrosive liquid.After injection molding, the stability of engaging member more preferably, air-tightness it is more excellent.Technological process is shortened, production cost is reduced, is more suitable for large-scale production.And there is no special substance requirement for injection-moulded plastic, the scope of application is wider.
Description
Technical field
The present invention relates to product complex technique field, in particular it relates to the engaging member of a kind of stainless steel and plastics
And its processing method.
Background technology
With the fast development of electronics industry, the shell of more and more electronic products is formed after being combined using metal and plastics
Joint product, with reach outward appearance metal show, the purpose of Inner plastic.
At present, in the method that metal and plastic injection are combined, work is typically handled by multiple tracks on the surface of metal base
Sequence processes to form small nano-size pores, and the small nano-size pores are generally perpendicular to metal base.Specifically, can be first in metallic substrate surface
Processing forms micron order macropore, and further corrosion forms small nano-size pores.And to reach preferably filling effect, often again
One layer of profit hole agent of coating or oxide-film on porous wall.Finally, plastics are pressed directly into the metal with some small nano-size pores
Substrate surface.But, such a method is only capable of the large-scale application on aluminium alloy, it is impossible to application and other metals or the conjunction such as stainless steel
Jin Zhong.Because small nano-size pores are not readily available in other most metals or alloy, or obtained by this method
The size of the aperture obtained, distribution do not have the effect for causing metal to have strong bonded plastics.
Therefore, deposited on stainless steel according to this kind of nanometer injection moulding process combination plastics with reference to the joint product of rear formation
In problems such as the unstable, poor reliability of technique.Thus it is necessary to existing stainless steel and plastics composite products and its processing
Method is improved.
The content of the invention
In view of this, it is an object of the present invention to provide the engaging member and its processing method of a kind of stainless steel and plastics
New solution.
There is provided a kind of stainless steel and the engaging member of plastics according to the first aspect of the invention.The engaging member includes stainless
Steel substrate, after being etched again by corrosive liquid through 400-900 degrees Celsius of heat treatment, is formed with the surface of the stainless steel substrate
Some sunk structures, the mean depth of the sunk structure is 0.1-30 microns, and the mean breadth of the sunk structure is 0.2-
15 microns, injection moulding has the part-structure in plastics, the plastics to be embedded in the sunk structure on the stainless steel substrate
It is interior.
Alternatively, the temperature of the heat treatment is 600-800 degrees Celsius, and the time of the heat treatment is 2-5 hours.
Alternatively, the average length of the sunk structure is more than 0.2 micron.
Alternatively, the sunk structure includes at least one of strip structure, folding shape structure, bends.
Alternatively, projection of the sunk structure on the stainless steel substrate surface includes the figure of closing.
Alternatively, cross sectional shape of the sunk structure on the direction perpendicular to the stainless steel substrate surface includes falling
At least one of triangle, arch, U-shaped, quadrangle.
Alternatively, the corrosive liquid includes：Nitric acid, phosphoric acid, sulfuric acid, sulfurous acid, hydrochloric acid, oxalic acid, acetic acid, hydrofluoric acid, horse
Come at least one of sour, phthalic acid, ethanedioic acid solution and its salting liquid.
Alternatively, the corrosive liquid includes：5-30% oxalic acid solutions and chlorate or combination, the 1-60% nitric acid of sulfate
Combination, 10-30% nitric acid with chloride or oxide and in the combination of 5-15% metal nitrates and 2-10% sulfate
It is at least one.
Alternatively, the temperature of the etching process is 20-90 degrees Celsius, and the time is 1-50 minutes.
Alternatively, oxidation film layer is formed with the surface of the sunk structure, the thickness of the oxidation film layer is received for 1-20
Rice.
Alternatively, the oxide-film at least includes two kinds in ferriferous oxide, chromated oxide and nickel oxide.
Alternatively, the plastics include thermoplastic resin and packing material, matter of the packing material in the plastics
Amount percentage is 5-40%, and the packing material includes nylon fiber, carbon fiber, glass fibre, aromatic polyamide fibre, carbon
At least one of sour calcium, magnesium carbonate, silica and clay.
Alternatively, the thermoplastic resin at least includes polyphenylene sulfide, poly terephthalic acid butanol resin, polyamides
At least one of amine, makrolon and polyolefin.
There is provided the processing method of a kind of stainless steel and plastics engaging member according to the second aspect of the invention.The processing side
Method includes：Stainless steel substrate is provided；Corrosive liquid etching process is carried out again through 400-900 degrees Celsius of heat treatment, described stainless
The surface of steel substrate forms the sunk structure that some mean depths are 0.1-30 microns, mean breadth is 0.2-15 microns；Will modeling
Material is molded into the surface of the stainless steel substrate, the part-structure in the plastics is embedded in the sunk structure, with shape
Into stainless steel and the engaging member of plastics.
Alternatively, the temperature of the heat treatment is 600-800 degrees Celsius, and the time of the heat treatment is 2-5 hours.
Alternatively, the corrosive liquid includes：Nitric acid, phosphoric acid, sulfuric acid, sulfurous acid, hydrochloric acid, oxalic acid, acetic acid, hydrofluoric acid, horse
Come at least one of sour, phthalic acid, ethanedioic acid solution and its salting liquid.
Alternatively, the corrosive liquid includes：5-30% oxalic acid solutions and chlorate or combination, the 1-60% nitric acid of sulfate
The combination of combination, 10-30% nitric acid and 5-15% metal nitrates and 2-10% sulfate with chloride or oxide is extremely
Few one kind.
Alternatively, the temperature in the corrosive liquid etching process is 20-90 degrees Celsius, and the time is 1-50 minutes.
Alternatively, the stainless steel surfaces include oxidation film layer, and the oxide thickness is 1-20 nanometers.
Alternatively, the oxide-film at least includes two kinds in ferriferous oxide, chromated oxide and nickel oxide.
Alternatively, the plastics include thermoplastic resin and packing material, matter of the packing material in the plastics
Amount percentage is 5-40%, and the packing material includes nylon fiber, carbon fiber, glass fibre, aromatic polyamide fibre, carbon
At least one of sour calcium, magnesium carbonate, silica and clay.
Alternatively, the thermoplastic resin include polyphenylene sulfide, it is poly terephthalic acid butanol resin, polyamide, poly-
At least one of carbonic ester and polyolefin.
It was found by the inventors of the present invention that combining modeling using nanometer injection moulding process commonly used in the prior art on stainless steel
Material, the joint product formed after combining is molded by small nano-size pores and there are the problems such as the unstable, poor reliability of technique.
Stainless steel substrate in the present invention carries out 400-900 degrees Celsius of heat treatment, namely sensitized treatment, exacerbates carbon chromium
Precipitation of the compound at crystal defect position, precipitation, can form serious chromium depleted region, then via corrosion on stainless steel substrate
Liquid corrosion forms some micron-sized sunk structures in chromium depleted region after carving.Stainless steel substrate is molded with plastics by the sunk structure
Adhesion with reference to after is bigger.Technological process is shortened, production cost is reduced, is more suitable for large-scale production.And for injection
Plastics do not have special substance requirement, and the scope of application is wider.
Therefore, the technical assignment to be realized of the present invention or technical problem to be solved be those skilled in the art from
It is not expecting or it is not expected that, therefore the present invention is a kind of new technical scheme.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
The accompanying drawing for being combined in the description and constituting a part for specification shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is the structural representation of the engaging member of the stainless steel and plastics provided in the embodiment of the present invention；
Fig. 2 is the schematic diagram of the sunk structure on the stainless steel substrate provided in the embodiment of the present invention；
Fig. 3 is the schematic diagram of the sunk structure on the stainless steel substrate provided in the embodiment of the present invention；
Fig. 4 is the schematic cross-section after stainless steel and plastics are combined in the embodiment of the present invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless had in addition
Body illustrates that the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments does not limit this
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its any limitation applied or used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The invention provides a kind of stainless steel and the engaging member of plastics, the engaging member includes stainless steel substrate and plastics.Such as
Shown in Fig. 1 to Fig. 4, stainless steel substrate 1 passes through 400-900 degrees Celsius of heat treatment, namely sensitized treatment, exacerbates carbide and exists
The precipitation at crystal defect position, precipitation, can form serious chromium depleted region on stainless steel substrate 1.Etched again via corrosive liquid
Some micron-sized sunk structures 11 are formed in chromium depleted region afterwards, the sunk structure 11 is micron-sized erosion trace.What is obtained is recessed
Falling between the surface of structure 11 and the stainless steel substrate 1 has angle of inclination, for example its surface with the stainless steel substrate 1
Between can have different angles of inclination.The mean depth H of the sunk structure 11 is 0.1-30 microns, the sunk structure
11 mean breadth W is 0.2-15 microns.Specifically, the sunk structure 11 includes existing with the surface of stainless steel substrate 1
First sunk structure of slope.First sunk structure can have relative to the slope on the surface of the stainless steel substrate 1
Different numerical value.The sunk structure 11 can also include the second sunk structure perpendicular to the surface of stainless steel substrate 1.Such as
This, includes surface tool of the sunk structure 11 relative to stainless steel substrate 1 of the first depression knot and second sunk structure
There are different angles of inclination.
Chromium depleted region during the sunk structure 11 formed after corrosive liquid is etched is organized with stainless steel substrate 1 has very big
Relation.In the present invention, between 400-900 degrees Celsius, the stainless steel substrate 1 is heated.When the stainless steel
Base material 1 when being heated between 400-900 degrees Celsius, or Slow cooling by this interval temperature when, intergranular can be produced inclined
Analysis, exacerbate carbide crystal defect position precipitation, precipitation, quickly formed in the both sides of crystal grain, crystal defect vicinity
Serious chromium depleted region.And the theoretical analysis and experimental verification show：By taking crystal boundary as an example, stainless steel hot treatment temperature is less than 400
Degree Celsius when, be difficult to be formed on crystal boundary and also be difficult to form Cr depletion zone near chromium carbide, crystal boundary.And when heat treatment temperature is higher than 900
Degree Celsius when, the diffusivity enhancing of chromium, the chromium in crystal grain can diffuse to crystal boundary, will not form poor because of the precipitation of chromium carbide
Chromium area.
Due between chromium depleted region and other regions rate of corrosion it is inconsistent, that is, the corrosion rate in chromium depleted region it is big
In other regions, thus it is formed on stainless steel substrate 1 perishable with corrosion-resistant cross-distribution region.Specifically, this
The chromium depleted region of class is solute atoms, impurity, the second equal rich region, can form micro- galvanic couple structure of state-passive state living, then is passed through
By the erosion of specific corrosive medium, perishable zonal corrosion, come off, form the sunk structure 11.
Injection moulding has the part-structure in plastics 2, the plastics 2 to be embedded in the depression on the stainless steel substrate 1
To form the engaging member in structure 11.Due to the sunk structure 11 have relative to the surface of stainless steel substrate 1 it is different
Part-structure in angle of inclination, thus the plastics 2 can be embedded in the sunk structure 11 with different angles of inclination
It is internal.Alternatively, the sunk structure 11, which can be only formed on stainless steel substrate 1, needs the region of injection-moulded plastic 2.Or,
The sunk structure 11 can also be formed in all surfaces of stainless steel substrate 1.
The stainless steel and the engaging member of plastics that the present invention is provided have the following technical effect that, first, by entering to stainless steel
Row heat treatment, namely sensitized treatment, produce intercrystalline segregation, Precipitation of the carbide at crystal defect position are exacerbated, in crystalline substance
The both sides of grain, form serious chromium depleted region at crystal defect, be perishable region.After being etched by corrosive liquid, perishable
Region forms some micron-sized sunk structures 11.Due between the sunk structure 11 and the surface of the stainless steel substrate 1
With differing tilt angles, when plastics 2 to be molded into the surface of the stainless steel substrate 1, the part-structure in plastics 2 can
It is embedded in different angles of inclination in the sunk structure 11, to form the engaging member of plastics and stainless steel.And the depression
The continuity of structure 11 is good, and the continuity of filling to the plastics 2 in the sunk structure 11 is also preferable.Therefore, plastics 2 being capable of picture
The root of plant is equally embedded in the depression in the surface structure 11 of stainless steel substrate 1, and adhesion is big, in stretching or shear history
Plastics 2 are difficult for drop-off.
Fig. 4 shows a kind of schematic cross-section after stainless steel substrate 1 and plastics 2 are combined in the present embodiment.In this example, erosion
Carve the micron order sunk structure 11 formed larger relatively deep, the activation without moistening hole agent, plastics 2 can be obtained in sunk structure 11
Preferably filling.And after traction stretching experiment, engaging member fracture location is in the middle part of plastics 2, and plastics 2 and stainless steel substrate
There is not crackle in 1 faying face, and thus demonstrating has stronger knot between the stainless steel substrate 1 in the present invention and plastics 2
With joint efforts.
Secondth, there is the different region of tissue, such as chromium depleted region in stainless steel substrate 1, it is former that such region has solid solution
The high potential materials such as son, the second phase and impurity, or be high, the more active area of energy with crystal defects such as crystal boundary, twins
Domain.The corrosive liquid of this programme is impregnated in, above-mentioned zone preferentially occurs burn into and come off, and slight corrosion only occurs for other regions,
Greatly reduce the consumption of corrosive liquid.Austenitic stainless steel is for example directed to, can form the depression using single-steeping ties
Structure 11.And other stainless steels are directed to, the depression can be formed by adding a corrosion propagation again on the basis of being etched in first time
Structure 11.Afterwards, direct injection molding, without carrying out other manufacturing procedures.Therefore, the technical program pore-forming technique flow letter
Change, reduce the percent defective of engaging member.
3rd, the injection-moulded plastic in the present invention is applied to most of plastics, including thermoplastic resin, such as polyphenylene sulfide resin
Fat (PPS), poly terephthalic acid butanol resin (PBT), polyamide (PA), makrolon (PC), polyolefin, polystyrene.And
The tiny blind hole formed in the prior art, mobility of the plastics in blind hole it is not good, it is necessary to by means of moisten hole agent and PPS or
The physical and chemical reaction of PBT material, therefore, PPS or PBT material is confined to conventional techniques plastics classification more, only this
Two class plastics contain substantial amounts of carboxyl, occur exothermic reaction with profit hole agent cationic.Plastics need to be anti-by means of heat release in injection
The heat that should be produced, delays the solidification in pore.And the size of the micron order sunk structure 11 in the present invention is larger, without modeling
Material and the exothermic reaction of profit hole agent can obtain preferable filling, thus expand the Application Range of plastics.
Preferably, the temperature of the heat treatment is 600-800 degrees Celsius, and the time of the heat treatment is 2-5 hours.Such as
This, can quickly form serious chromium depleted in the range of this temperature range to the heat treatment of the certain time of stainless steel substrate 1
Region.
Preferably, section of the sunk structure 11 on the direction perpendicular to the surface of stainless steel substrate 1 is at least wrapped
Include at least one of del, arch, U-shaped, quadrangle.In this way, during injection, plastics 2 are easy to be embedded in such a depression knot
In structure 11.
The bearing of trend and distributional pattern of the sunk structure 11 can have different modes, as long as obtained by corrosion
Sunk structure 11 can produce absorption affinity to the embedded plastics 2 of injection.Preferably, the sunk structure 11 may include bar shaped knot
At least one of structure, folding shape structure, bends.In sunk structure in any one structure wherein, what it was formed
Inner recess space should ensure that continuity preferably, and bearing of trend is not undergone mutation.Plastics 2 are embedded in institute in this way, easily facilitating
State in sunk structure 11.
Intercrystalline corrosion on stainless steel substrate 1 is carried out along the edge of crystal grain, thus the sunk structure 11 is in institute
Stating the projection on the surface of stainless steel substrate 1 may include the figure of closing.The figure of such as described closing can surround crystal grain
The closed figure of rectangle, annular or other irregular shapes.For example shown in Fig. 2, Fig. 3.It should be noted that the closing
Figure can be formed by the connection of at least one of above-mentioned some strip structures, folding shape structure, bends.The depression knot
Projection of the structure 11 on the surface of stainless steel substrate 1 can also include open figure.As shown in figure 3, the sunk structure
11 can be strip structure that average length L is more than 0.2 micron etc..
Preferably, the surface of the sunk structure 11 is formed with oxidation film layer, and the thickness of the oxidation film layer is received for 1-20
Rice.Further, the oxide-film at least includes two kinds in ferriferous oxide, chromated oxide and nickel oxide.Compared to stainless
Steel substrate 1, the thermal conductivity factor of oxide-film is relatively low, and the heat that plastics 2 can be reduced during injection scatters and disappears, and has delayed plastics 2 to solidify, crystallize
Time, plastics 2 is more fully filled in the sunk structure 11, the bottom of the sunk structure 11 can also be obtained
Obtain and preferably fill.For example in the case of 400 DEG C, the thermal conductivity factor of stainless steel is 16.3W/mK, and di-iron trioxide is led
Hot coefficient is 5.1W/mK, and the thermal conductivity factor of ferrous oxide is 15.0W/mK, and the thermal conductivity factor of chromium oxide is left for 10W/mK
It is right.
It should be noted that the generation type of oxidation film layer is not exposed to limitation, high-temperature oxydation, chemistry can be included blunt
Change, electrochemical passivation mode.No matter which kind of mode its final effect is in stainless steel surfaces one layer of fine and close, thermal insulation of formation
Oxide-film.
The linear coefficient of expansion of the plastics 2 should be with stainless steel substrate 1 as close as in favor of the solidification of injection.
Due to being usually used in the PPS of injection or the linear expansion coefficient of PBT material in 6-8 × 10-5/ DEG C or so, and the line of stainless steel expands
Coefficient is 1.5 × 10-5/ DEG C, differ larger.Therefore, it is necessary to be modified for principal component resin material, combination is significantly reduced
The linear expansion coefficient of thing.
Preferably, it is thermoplastic resin and packing material that the plastics 2, which include,.Such as described thermoplastic resin can include
Polyolefin polyphenylene sulfide, poly terephthalic acid butanol resin, polyamide, makrolon, polyolefin etc..The packing material
Mass percent in the plastics 2 can be 5-40%.The packing material may include nylon fiber, carbon fiber, glass
At least one of fiber, aromatic polyamide fibre, calcium carbonate, magnesium carbonate, silica and clay.In this way, the filling
Material is improved the principal component resin material of the plastics 2, can significantly reduce the linear expansion coefficient of plastics 2, so as to connect
The linear expansion coefficient of nearly stainless steel.
In the present invention, a kind of processing method of stainless steel and plastics engaging member includes：
First there is provided stainless steel substrate 1, in order to which plastics 2 to be molded into the surface of stainless steel substrate 1.At present, it is conventional
Stainless steel includes chromium mass fraction in austenitic stainless steel and martensitic stain less steel, tissue and is more than 12%.Chromium atom is not
Diffusion velocity is small in rust steel, easily forms chromium depleted region.And stainless steel have high corrosion resistance main reason is that chromium
Oxidation forms fine and close oxide-film, improves material corrosion resistance.Therefore, the perishable region such as substantial amounts of chromium depleted region is after stainless steel
Continuous etching provides good organization foundation.Thus, the technical program and inapplicable ferrous materials, but apply to it is whole not
Become rusty steel.
Afterwards, between 400-900 degrees Celsius, the stainless steel substrate 1 is heated.In this way, exacerbating carbon
Compound forms serious chromium depleted region in the Precipitation at crystal defect position at the both sides of crystal grain, crystal defect.Due to poor
Rate of corrosion is inconsistent between chromium region and other regions, that is, the corrosion rate in chromium depleted region is greater than other regions, because
And perishable and corrosion-resistant cross-distribution region is formed on stainless steel substrate 1.
Preferably, the temperature of the heating is 600-800 degrees Celsius, and the time of the heat treatment is 2-5 hours.Such as
This, can quickly form serious chromium depleted in the range of this temperature range to the heat treatment of the certain time of stainless steel substrate 1
Region.To obtain the sunk structure 11 for more conforming to require in subsequent processes, the inside of sunk structure 11 it is coherent
Property more preferably, plastics 2 are more easy to be embedded within portion.
Afterwards, corrosive liquid etching process is carried out to the stainless steel substrate 1, to form micron-sized sunk structure 11.Figure
2nd, Fig. 3, Fig. 4 show the surface appearance feature etched using the technical program, and the mean depth H of the sunk structure 11 is
0.1-30 microns, mean breadth W be 0.2-15 microns.
The sunk structure 11 includes the first sunk structure that there is slope relative to stainless steel substrate 1.Described first is recessed
Different numerical value can be had relative to the slope on the surface of the stainless steel substrate 1 by falling into structure.The sunk structure 11 may be used also
With including the second sunk structure perpendicular to the surface of stainless steel substrate 1.In this way, including the described first depression knot and described the
The sunk structure 11 of two sunk structures has different angles of inclination relative to the surface of stainless steel substrate 1.Enable in plastics 2
Part-structure be embedded in as the root of plant in sunk structure 11, the adhesion between it is bigger.
Can stainless steel, which corrode, to form the key of sunk structure 11 and is rate of corrosion between chromium depleted region and other regions
It is inconsistent, that is, the corrosion rate in chromium depleted region be greater than other regions.Therefore, the species of corrosive liquid is constituted not only with composition
Decide whether that sunk structure 11 can be formed, and determine the size of sunk structure 11.Therefore, it is preferred several groups in this programme
Corrosive liquid, constitutes weak oxide medium, is more beneficial for the formation of micron order sunk structure 11.Alternatively, the corrosive liquid includes：
Nitric acid, phosphoric acid, sulfuric acid, sulfurous acid, hydrochloric acid, oxalic acid, acetic acid, hydrofluoric acid, maleic acid, phthalic acid, ethanedioic acid solution and its salt are molten
At least one of liquid.Alternatively, the corrosive liquid includes：5-30% oxalic acid solutions and chlorate or combination, the 1- of sulfate
60% nitric acid and combination, 10-30% nitric acid and the 5-15% metal nitrates and 2-10% sulfate of chloride or oxide
At least one of combination
Preferably, the temperature in the corrosive liquid etching process is 20-90 degrees Celsius, and the duration is 1-50 minutes.Such as
This, by the multiple parameters in control method, results in the size of the sunk structure 11 of needs, and shape etc..
For the ease of carrying out corrosive liquid etching to the surface of stainless steel substrate 1 preferably to form the sunk structure 11,
Optionally, before corrosive liquid etching is carried out, oil removing ungrease treatment is carried out to stainless steel substrate 1.Specifically, can be by stainless steel
Base material 1 be soaked in 35-80 degrees Celsius of cleaning agent carry out it is ultrasonically treated 60-600 seconds.Afterwards, pure water rinsing is carried out.For example,
The cleaning agent can be 100-300g/L acid, alkali or organic solvent etc..
Alternatively, formed on the surface of the stainless steel substrate 1 after sunk structure 11, in the table of the sunk structure 11
Face can working process formation oxide-film.The thickness of the oxidation film layer can be 1-20 nanometers.Further, the oxide-film can be extremely
Include two kinds in ferriferous oxide, chromated oxide and nickel oxide less.In this way, the heat that plastics 2 can be reduced during injection scatters and disappears, prolong
Delay the time that plastics 2 solidify, crystallized, plastics 2 is more fully filled in the sunk structure 11, the depression knot
The bottom of structure 11 also results in preferable filling.It should be noted that the generation type of oxidation film layer is not exposed to limitation, can
With including high-temperature oxydation, chemical passivation, electrochemical passivation mode.No matter which kind of mode its final effect is in stainless steel surfaces shape
Into one layer of fine and close, thermal insulation oxide-film.
Finally, plastics 2 are molded into the surface of the stainless steel substrate 1, the part-structure in the plastics 2 is embedded in
In the sunk structure 11, to form the engaging member of stainless steel and plastics.Preferably, the plastics 2 include thermoplastic resin and
Packing material.The thermoplastic resin can include polyolefin polyphenylene sulfide, poly terephthalic acid butanol resin, polyamides
At least one of amine, makrolon, polyolefin.Mass percent of the packing material in the plastics 2 can be 5-
40%.The packing material may include nylon fiber, carbon fiber, glass fibre, aromatic polyamide fibre, calcium carbonate, carbonic acid
At least one of magnesium, silica and clay.In this way, the packing material adds to the principal component resin material of the plastics 2
To improve, the linear expansion coefficient of plastics 2 can be significantly reduced, so that close to the linear expansion coefficient of stainless steel.
In a kind of embodiment of the present invention, stainless steel substrate 1 is carried out at a temperature of 700 degrees Celsius first
Heat treatment；Again using the combination corrosive liquid of 10-30% nitric acid and 5-15% metal nitrates and 2-10% sulfate to stainless steel
Base material 1 is etched, and etching process temperature is 60 degrees Celsius；, will be by PBT+30wt% glass then under 300 DEG C of injection temperature
The time of its injection of glass fiber mixing finally gives the engaging member of stainless steel and plastics to the surface of stainless steel substrate 1.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel are it should be understood that example above is merely to illustrate, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (22)
1. the engaging member of a kind of stainless steel and plastics, it is characterised in that the engaging member includes stainless steel substrate, through 400-900
Degree Celsius heat treatment etched again by corrosive liquid after, some sunk structures, institute are formed with the surface of the stainless steel substrate
The mean depth for stating sunk structure is 0.1-30 microns, and the mean breadth of the sunk structure is 0.2-15 microns, described stainless
Injection moulding has the part-structure in plastics, the plastics to be embedded in the sunk structure on steel substrate.
2. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that the temperature of the heat treatment is
600-800 degrees Celsius, the time of the heat treatment is 2-5 hours.
3. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that the average length of the sunk structure
Degree is more than 0.2 micron.
4. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that the sunk structure includes bar shaped
At least one of structure, folding shape structure, bends.
5. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that the sunk structure it is described not
Projection on rust steel substrate surface includes the figure of closing.
6. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that the sunk structure perpendicular to
Cross sectional shape on the direction on the stainless steel substrate surface includes at least one of del, arch, U-shaped, quadrangle.
7. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that the corrosive liquid includes：Nitric acid,
In phosphoric acid, sulfuric acid, sulfurous acid, hydrochloric acid, oxalic acid, acetic acid, hydrofluoric acid, maleic acid, phthalic acid, ethanedioic acid solution and its salting liquid
It is at least one.
8. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that preferably, the corrosive liquid bag
Include：The combination, the combination of 1-60% nitric acid and chloride or oxide, 10- of 5-30% oxalic acid solutions and chlorate or sulfate
At least one of combination of 30% nitric acid and 5-15% metal nitrates and 2-10% sulfate.
9. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that the corrosive liquid etching process
Temperature is 20-90 degrees Celsius, and the time is 1-50 minutes.
10. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that in the table of the sunk structure
Face is formed with oxidation film layer, and the thickness of the oxidation film layer is 1-20 nanometers.
11. the engaging member of stainless steel according to claim 10 and plastics, it is characterised in that the oxide-film at least includes
Two kinds in ferriferous oxide, chromated oxide and nickel oxide.
12. the engaging member of stainless steel according to claim 1 and plastics, it is characterised in that the plastics include thermoplasticity
Resin and packing material, mass percent of the packing material in the plastics are 5-40%, and the packing material includes
In nylon fiber, carbon fiber, glass fibre, aromatic polyamide fibre, calcium carbonate, magnesium carbonate, silica and clay extremely
Few one kind.
13. the engaging member of stainless steel according to claim 12 and plastics, it is characterised in that the thermoplastic resin is at least
Including at least one of polyphenylene sulfide, poly terephthalic acid butanol resin, polyamide, makrolon and polyolefin.
14. the processing method of a kind of stainless steel and plastics engaging member, it is characterised in that including：Stainless steel substrate is provided；Through 400-
900 degrees Celsius of heat treatment carries out corrosive liquid etching process again, and some mean depths are formed on the surface of the stainless steel substrate
For the sunk structure that 0.1-30 microns, mean breadth are 0.2-15 microns；By plastic injection to the surface of the stainless steel substrate,
The part-structure in the plastics is set to be embedded in the sunk structure, to form the engaging member of stainless steel and plastics.
15. the processing method of stainless steel according to claim 14 and plastics engaging member, it is characterised in that the heat treatment
Temperature be 600-800 degrees Celsius, time of the heat treatment is 2-5 hours.
16. the processing method of stainless steel according to claim 14 and plastics engaging member, it is characterised in that the corrosive liquid
Including：Nitric acid, phosphoric acid, sulfuric acid, sulfurous acid, hydrochloric acid, oxalic acid, acetic acid, hydrofluoric acid, maleic acid, phthalic acid, ethanedioic acid solution and its
At least one of salting liquid.
17. the processing method of stainless steel according to claim 14 and plastics engaging member, it is characterised in that the corrosive liquid
Including：The combination of 5-30% oxalic acid solutions and chlorate or sulfate, the combination of 1-60% nitric acid and chloride or oxide,
At least one of the combination of 10-30% nitric acid and 5-15% metal nitrates and 2-10% sulfate.
18. the processing method of stainless steel according to claim 14 and plastics engaging member, it is characterised in that the corrosive liquid
Temperature in etching process is 20-90 degrees Celsius, and the time is 1-50 minutes.
19. the processing method of stainless steel according to claim 14 and plastics engaging member, it is characterised in that the stainless steel
Surface includes oxidation film layer, and the oxide thickness is 1-20 nanometers.
20. the processing method of stainless steel according to claim 19 and plastics engaging member, it is characterised in that the oxide-film
At least include two kinds in ferriferous oxide, chromated oxide and nickel oxide.
21. the processing method of stainless steel according to claim 14 and plastics engaging member, it is characterised in that the plastics bag
Thermoplastic resin and packing material are included, mass percent of the packing material in the plastics is 5-40%, the filling
Material includes nylon fiber, carbon fiber, glass fibre, aromatic polyamide fibre, calcium carbonate, magnesium carbonate, silica and sticked
At least one of soil.
22. the processing method of stainless steel according to claim 21 and plastics engaging member, it is characterised in that the thermoplasticity
Resin includes at least one in polyphenylene sulfide, poly terephthalic acid butanol resin, polyamide, makrolon and polyolefin
Kind.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710166341.XA CN106965375A (en) | 2017-03-20 | 2017-03-20 | The engaging member and its processing method of a kind of stainless steel and plastics |
| PCT/CN2017/090914 WO2018171076A1 (en) | 2017-03-20 | 2017-06-29 | Combined piece of stainless steel and plastic and processing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710166341.XA CN106965375A (en) | 2017-03-20 | 2017-03-20 | The engaging member and its processing method of a kind of stainless steel and plastics |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106965375A true CN106965375A (en) | 2017-07-21 |
Family
ID=59329292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710166341.XA Pending CN106965375A (en) | 2017-03-20 | 2017-03-20 | The engaging member and its processing method of a kind of stainless steel and plastics |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106965375A (en) |
| WO (1) | WO2018171076A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018171077A1 (en) * | 2017-03-20 | 2018-09-27 | 歌尔股份有限公司 | Stainless steel and plastic combined piece and processing method therefor |
| CN110760848A (en) * | 2019-10-30 | 2020-02-07 | 湖南金裕环保科技有限公司 | Stainless steel surface roughening liquid and preparation method thereof |
| CN114425835A (en) * | 2020-10-29 | 2022-05-03 | 比亚迪股份有限公司 | Ceramic matrix, ceramic plastic composite and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568420A (en) * | 2006-12-28 | 2009-10-28 | 大成普拉斯株式会社 | Metal/resin composite and process for producing the same |
| CN102268183A (en) * | 2010-06-04 | 2011-12-07 | 鸿富锦精密工业（深圳）有限公司 | Aluminum or aluminum alloy and plastic composite and manufacturing method thereof |
| CN103286908A (en) * | 2012-02-24 | 2013-09-11 | 比亚迪股份有限公司 | Metal resin integrated forming method and metal resin composite |
| CN104085078A (en) * | 2014-06-11 | 2014-10-08 | 深圳市欣茂鑫精密五金制品有限公司 | Aluminum-based plastic composite product and preparation method thereof |
| CN105500601A (en) * | 2014-09-24 | 2016-04-20 | 比亚迪股份有限公司 | Metal substrate, surface treatment method thereof, and metal-resin composite and production method therefor |
| CN105500600A (en) * | 2014-09-24 | 2016-04-20 | 比亚迪股份有限公司 | Surface treatment method for metal substrate, the metal substrate, and metal-resin composite and production method of same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670647A (en) * | 2008-09-10 | 2010-03-17 | 晟铭电子科技股份有限公司 | Method for embedding thermoplastic or thermoset material in metal material |
| CN102371649A (en) * | 2010-08-19 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Manufacturing method of metal-resin complex |
| CN103286909B (en) * | 2012-02-24 | 2015-09-30 | 比亚迪股份有限公司 | A kind of metal-resin integrated molding method and a kind of metal-resin composite |
| CN102814919B (en) * | 2012-09-13 | 2015-11-18 | 格林精密部件（惠州）有限公司 | Outward appearance handware In-mold decoration method |
| CN103895156A (en) * | 2014-04-01 | 2014-07-02 | 东莞劲胜精密组件股份有限公司 | Composite material and preparation method thereof |
| KR101469899B1 (en) * | 2014-11-04 | 2014-12-08 | (주)일광폴리머 | Method for production of metal-resin complex |
-
2017
- 2017-03-20 CN CN201710166341.XA patent/CN106965375A/en active Pending
- 2017-06-29 WO PCT/CN2017/090914 patent/WO2018171076A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101568420A (en) * | 2006-12-28 | 2009-10-28 | 大成普拉斯株式会社 | Metal/resin composite and process for producing the same |
| CN102268183A (en) * | 2010-06-04 | 2011-12-07 | 鸿富锦精密工业（深圳）有限公司 | Aluminum or aluminum alloy and plastic composite and manufacturing method thereof |
| CN103286908A (en) * | 2012-02-24 | 2013-09-11 | 比亚迪股份有限公司 | Metal resin integrated forming method and metal resin composite |
| CN104085078A (en) * | 2014-06-11 | 2014-10-08 | 深圳市欣茂鑫精密五金制品有限公司 | Aluminum-based plastic composite product and preparation method thereof |
| CN105500601A (en) * | 2014-09-24 | 2016-04-20 | 比亚迪股份有限公司 | Metal substrate, surface treatment method thereof, and metal-resin composite and production method therefor |
| CN105500600A (en) * | 2014-09-24 | 2016-04-20 | 比亚迪股份有限公司 | Surface treatment method for metal substrate, the metal substrate, and metal-resin composite and production method of same |
Non-Patent Citations (1)
| Title |
|---|
| 唐代明等: "《金属材料学》", 30 June 2014, 西安交通大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018171077A1 (en) * | 2017-03-20 | 2018-09-27 | 歌尔股份有限公司 | Stainless steel and plastic combined piece and processing method therefor |
| CN110760848A (en) * | 2019-10-30 | 2020-02-07 | 湖南金裕环保科技有限公司 | Stainless steel surface roughening liquid and preparation method thereof |
| CN114425835A (en) * | 2020-10-29 | 2022-05-03 | 比亚迪股份有限公司 | Ceramic matrix, ceramic plastic composite and preparation method thereof |
| CN114425835B (en) * | 2020-10-29 | 2023-08-08 | 比亚迪股份有限公司 | Ceramic matrix, ceramic plastic composite and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018171076A1 (en) | 2018-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106965374A (en) | The engaging member and its processing method of a kind of stainless steel and plastics | |
| CN106965375A (en) | The engaging member and its processing method of a kind of stainless steel and plastics | |
| JP5426932B2 (en) | Composite of metal alloy and thermosetting resin and method for producing the same | |
| ATE417691T1 (en) | METHOD FOR JOINING WORKPIECES MADE OF STAINLESS STEEL, NICKEL OR NICKEL ALLOYS USING A JOINING LAYER CONSISTING OF A NICKEL-PHOSPHORUS ALLOY; METHOD FOR PRODUCING A MICROSTRUCTURED COMPONENT USING SUCH A METHOD | |
| Derazkola et al. | Underwater friction stir welding of PC: Experimental study and thermo-mechanical modelling | |
| JP5302315B2 (en) | Composite of metal alloy and polyamide resin composition and method for producing the same | |
| CN109628932A (en) | Composite material and preparation method | |
| JP2006027018A (en) | Metal/resin composite body and its manufacturing method | |
| JP2012157991A (en) | Metal-resin composite and production process thereof | |
| WO2018129870A1 (en) | Stainless steel and plastic combined member, and processing method therefor | |
| Fadeeva et al. | Melting of Fe-terephthalate layers on Cu (1 0 0) surface with randomly distributed point defects | |
| Kadoya et al. | Structure size effect on polymer infiltration in injection molded direct joining | |
| Mandal et al. | Sustainable approach for the development of durable superhydrophobic metallic surfaces | |
| CN106903838A (en) | The conjunction and its processing method of stainless steel and plastics | |
| Kumar | Process parameters influencing melt profile and hardness of pulsed laser treated Ti–6Al–4V | |
| JP2013159834A (en) | Method for manufacturing resin-bonding aluminum-casting alloy member and resin-bonding aluminum-casting alloy member obtained by the method | |
| DE50307105D1 (en) | COATING AGENT FOR A TOPSCHLACK, METHOD FOR THE PRODUCTION AND USE OF THE COATING DEVICE | |
| CN107009570B (en) | The engaging member and its processing method of stainless steel and plastics | |
| CN106917061B (en) | The engaging member and its processing method of stainless steel and plastics | |
| ATE484851T1 (en) | METHOD FOR PRODUCING A PIEZOELECTRIC ACTUATOR | |
| Schulte et al. | Corrosion of NiTi shape-memory alloys: Visualization by means of potentiometric" constant-distance" scanning electrochemical Microscopy | |
| Pierre-Louis et al. | Wetting of solid islands on parallel nano-grooves | |
| CN106884163B (en) | The engaging member and its processing method of stainless steel and plastics | |
| Feng et al. | Distribution of Zn and interfacial microstructure of braze-welding CMT joints between aluminium and galvanized steel sheets | |
| Wang et al. | Submicrometer analyses of the polymer flow modifier effects on metal–polymer direct joining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170721 |