CN108587402A - A kind of tapping screw - Google Patents
A kind of tapping screw Download PDFInfo
- Publication number
- CN108587402A CN108587402A CN201810466436.8A CN201810466436A CN108587402A CN 108587402 A CN108587402 A CN 108587402A CN 201810466436 A CN201810466436 A CN 201810466436A CN 108587402 A CN108587402 A CN 108587402A
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- China
- Prior art keywords
- wear
- resistant coating
- parts
- polyurethane
- epoxy resin
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 65
- 238000000576 coating method Methods 0.000 claims abstract description 65
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- CAZBGNGNIZEMPG-UHFFFAOYSA-N 4,5-dihydro-1h-imidazol-1-ium;acetate Chemical compound CC([O-])=O.C1CN=C[NH2+]1 CAZBGNGNIZEMPG-UHFFFAOYSA-N 0.000 claims description 9
- OEFUPDVUTAYHCC-UHFFFAOYSA-N C(CCCCCCCCCCC)C(C(=O)O)[Na] Chemical group C(CCCCCCCCCCC)C(C(=O)O)[Na] OEFUPDVUTAYHCC-UHFFFAOYSA-N 0.000 claims description 9
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 abstract description 28
- 229920002635 polyurethane Polymers 0.000 abstract description 28
- 239000003822 epoxy resin Substances 0.000 abstract description 21
- 229920000647 polyepoxide Polymers 0.000 abstract description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 19
- 239000011863 silicon-based powder Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 229920000642 polymer Polymers 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 14
- 239000004594 Masterbatch (MB) Substances 0.000 description 10
- 239000003973 paint Substances 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000001804 emulsifying effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 230000005476 size effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/04—Polymer mixtures characterised by other features containing interpenetrating networks
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of tapping screw, including screw body, the outer surface of screw body is coated with wear-resistant coating, counts in parts by weight, wear-resistant coating raw material includes following components, 30 60 parts of micro- part of silicon;10 20 parts of epoxy resin;26 parts of curing agent;10 20 parts of polyurethane.Wear-resistant coating can improve rub proofness under the premise of not reducing process equipment service life outside screw body, and twisting slot is avoided to be screwed flower.Polyurethane has higher mechanical strength so that wear-resistant coating has excellent wearability.Epoxy resin has very high intensity, polyurethane has very high toughness and rub resistance, epoxy resin and polyurethane can form interpenetrating polymer networks so that the advantages of the two be combined with each other and has the function of synergy, ensure that the wear-resisting property of wear-resistant coating.Silicon powder can eliminate the internal stress of wear-resistant coating after hardening, prevent cracking from further improving the wear-resisting property of wear-resistant coating.
Description
Technical field
The present invention relates to a kind of fasteners, more particularly, to a kind of tapping screw.
Background technology
Tapping screw or fast tooth screw are a kind of fast-assembling fasteners, generally include nut and screw rod, are offered on nut
Twisting slot.
In the prior art, in order to improve the production efficiency and yield of tapping screw, tapping screw is usually integrally machined molding,
Its process is:Round steel (cold-)drawn (steel)wire, heading machine are washed into base, and thread rolling machine rubs screw thread, and heat-treated stream waterline carries out carburizing, quenches
Fire, tempering carry out phosphatization or nigrescence from now on.
To save production cost, and the service life of raising process line, the material selection of tapping screw is usually not
Can be especially hard, therefore during routine use, often will appear user of service and the twisting slot on nut is twisted into flower, and lead
The problem of causing tapping screw that can not be dismantled and be difficult to reuse, has much room for improvement.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of tapping screw, can not reduce
Under the premise of the service life of process line, the rub proofness of tapping screw is improved, and then twisting slot is avoided to be screwed flower.
To achieve the above object, the present invention provides following technical solutions:
The outer surface of a kind of tapping screw, including screw body, the screw body is coated with wear-resistant coating, by weight
Number meter, the wear-resistant coating raw material includes following components, micro- part 30-60 parts of silicon;10-20 parts of epoxy resin;2-6 parts of curing agent;
10-20 parts of polyurethane.
It can not reduced by the outer surface wear-resistant coating in screw body by using above-mentioned technical proposal
Under the premise of the service life of process line, the rub proofness of tapping screw is improved, and then twisting slot is avoided to be screwed flower.
Since the group contained in polyurethane macromolecular is all highly polar group, and also contain polyethers or poly- in macromolecular
Ester soft segment so that polyurethane has higher mechanical strength, oxidation stability, has higher flexibility and resilience,
With excellent oil resistivity, solvent resistance, water resistance and fire resistance.Using polyurethane as the raw material of wear-resistant coating so that wear-resisting
Coating has excellent wearability, caking property, glossiness height.
Epoxy resin as a kind of thermosetting resin there are many excellent performances, such as easy solidification high mechanical strength, to glue
Attached power is strong, molding shrinkage is low, chemical stability is good etc., further improves the wearability of wear-resistant coating and in screw body
On adhesiving effect, by curing agent to the solidification of epoxy resin so that wear-resistant coating can be in corresponding heating condition
Under be cured.
Epoxy resin has very high intensity and corrosion resistance, and polyurethane has very high toughness and rub resistance, ring
Oxygen resin and polyurethane can mutually run through, tangling forms interpenetrating polymer networks so that the advantages of the two be combined with each other and has
There is synergy, while the mixture homogeneity between epoxy resin and polyurethane can also be improved, ensure that wear-resisting painting
The wear-resisting property of layer.
Silicon powder is a kind of inorganic non-metallic material being process through multiple tracks technique by natural quartz or vitreous silica, tool
There is the advantages of high temperature resistant, high-insulativity, high rigidity, low heat expansion.Filler in using silicon powder as wear-resistant coating, can not only
The cost of material is enough reduced, and the internal stress of wear-resistant coating after hardening can be eliminated, prevents from cracking, and the size of silicon powder is
Micron order is conducive to its distribution in wear-resistant coating, and then further improves the wear-resisting property of wear-resistant coating.
The present invention is further arranged to:It counts in parts by weight, the wear-resistant coating raw material includes following components, the micro- part of silicon
35-45 parts;12-18 parts of epoxy resin;3-5 parts of curing agent;13-18 parts of polyurethane.
The present invention is further arranged to:The screw body includes screw rod and nut, and the upper surface of the nut offers
Twisting slot, the upper surface of the wear-resistant coating covering nut and the inner wall of twisting slot.
By using above-mentioned technical proposal, by the way that wear-resistant coating is coated in upper surface and the twisting slot of nut
Wall can effectively improve the service life of twisting slot, avoid twisting slot from being screwed flower, and carried out compared on entire screw body
Coating has higher production efficiency.
The present invention is further arranged to:It counts in parts by weight, the wear-resistant coating raw material includes three ethoxy of 3- aminopropyls
3-5 parts of base silane.
By using above-mentioned technical proposal, silicon powder due to its excellent mechanical property and surface property and with for filler,
But a large amount of active silicone hydroxyl is contained on its surface, makes silicon powder surface that hydrophilic and oleophobic characteristic be presented, the boundary between high polymer
Face compatibility and amalgamation are poor, are not easy to achieve the desired results.Water occurs for the ethyoxyl in 3-aminopropyltriethoxysilane
Solution forms polyhydroxy silanol, and then with the hydroxyl condensation on silicon powder surface, the 3- amino in 3-aminopropyltriethoxysilane
Third class group can tangle and be combined as a whole with the high polymer long chain in epoxy resin-polyurethane interpenetrating system, and then improve
Compatibility between silicon powder and epoxy resin-polyurethane interpenetrating system, to improve the wear-resisting property of wear-resistant coating.
The present invention is further arranged to:The curing agent is set as lauryl carboxymethyl sodium form imidazoline acetate.
By using above-mentioned technical proposal, lauryl carboxymethyl sodium form imidazoline acetate can not only be used as epoxy resin
Curing agent, also there is certain emulsifying capacity, can improve the mixture homogeneity of epoxy resin and polyurethane, both promote shape
At interpenetrating network system, while can also further improve compatible between silicon powder and epoxy resin-polyurethane interpenetrating system
Property, and then further increase the wear-resisting property of wear-resistant coating.
The present invention is further arranged to:It counts in parts by weight, the wear-resistant coating raw material includes 2-4 parts of zinc oxide.
By using above-mentioned technical proposal, zinc oxide disperse has moved object in wear-resistant coating to polyurethane molecular segment
Manage crosslinked action so that the effect of contraction enhancing that the movement of polyurethane molecular segment is subject under external force, wear-resistant coating
Yield strength increases.
The present invention is further arranged to:The zinc oxide is set as nano zine oxide.
By using above-mentioned technical proposal, nano zine oxide is due to the imperceptibility of crystal grain, Electronic Structure and crystal
Structure changes, and produces skin effect, bulk effect, quantum size effect and macroscopical tunnel-effect that portion of macroscopical institute has
And the features such as polymolecularity, there is higher activity.Due to heterogeneous nucleating effect, nano zine oxide makes crystalline polyurethane degree carry
Height, crystallite dimension decline, and then the internal structure of wear-resistant coating is caused more to be stablized, and have higher structural strength, to
Further increase the wear-resisting property of wear-resistant coating.
In conclusion the invention has the advantages that:
1., can be in the service life for not reducing process line by the outer surface wear-resistant coating in screw body
Under the premise of, the rub proofness of tapping screw is improved, and then twisting slot is avoided to be screwed flower;
2. epoxy resin has very high intensity and corrosion resistance, and polyurethane has very high toughness and rub resistance,
Epoxy resin and polyurethane can mutually run through, tangling forms interpenetrating polymer networks so that the advantages of the two be combined with each other and
Have the function of synergy, while the mixture homogeneity between epoxy resin and polyurethane can also be improved, ensure that wear-resisting
The wear-resisting property of coating;
3. the filler in using silicon powder as wear-resistant coating can not only reduce the cost of material, and can improve wear-resisting
The internal stress of coating after hardening, prevents from cracking, and 3-aminopropyltriethoxysilane being capable of silicon powder and the poly- ammonia of epoxy resin-
Compatibility between ester interpenetrating system, to improve the wear-resisting property of wear-resistant coating;
4. lauryl carboxymethyl sodium form imidazoline acetate can not only also have certain as the curing agent of epoxy resin
Emulsifying capacity, can improve the mixture homogeneity of epoxy resin and polyurethane, both promote to form interpenetrating network system, simultaneously
The compatibility between silicon powder and epoxy resin-polyurethane interpenetrating system can also further be improved, and then further increased resistance to
Grind the wear-resisting property of coating.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment 1-6 and comparative example 1-4.
Reference sign:1, screw body;11, screw rod;12, nut;121, twisting slot.
Specific implementation mode
Embodiment 1, a kind of tapping screw, as shown in Figure 1, including screw body 1.Screw body 1 includes screw rod 11 and spiral shell
The upper surface of cap 12, nut 12 offers twisting slot 121, the twisting slot 121 can be cross, "-" type, interior hexangle type or
It is quincunx etc..It is coated with wear-resistant coating on the upper surface of nut 12 and the inner wall of twisting slot 121, counts in parts by weight, it is wear-resisting
The raw material components of coating are as shown in table 1.The preparation of wear-resistant coating includes the following steps:
Step 1, epoxy resin, polyurethane are added in reaction kettle, stir evenly acquisition matrix;
Step 2, silicon powder and nano zine oxide are added in matrix, stir evenly and obtains masterbatch;
Step 3, masterbatch is added in 3-aminopropyltriethoxysilane and lauryl carboxymethyl sodium form imidazoline acetate
In, stir evenly acquisition wear-resistant paint;
Step 4, wear-resistant paint is coated on screw body 1, is heating and curing to form wear-resistant coating.
Embodiment 2, difference from example 1 is that, it counts in parts by weight, the raw material components such as table 1 of wear-resistant coating
It is shown.
Embodiment 3, difference from example 1 is that, it counts in parts by weight, the raw material components such as table 1 of wear-resistant coating
It is shown.The preparation of wear-resistant coating includes the following steps:
Step 1, epoxy resin, polyurethane are added in reaction kettle, stir evenly acquisition matrix;
Step 2, silicon powder and nano zine oxide are added in matrix, stir evenly and obtains masterbatch;
Step 3, lauryl carboxymethyl sodium form imidazoline acetate is added in masterbatch, stirs evenly acquisition wear-resistant paint;
Step 4, wear-resistant paint is coated on screw body 1, is heating and curing to form wear-resistant coating.
Embodiment 4 the difference is that, is counted in parts by weight with embodiment 3, the raw material components such as table 1 of wear-resistant coating
It is shown.
Embodiment 5, difference from example 1 is that, it counts in parts by weight, the raw material components such as table 1 of wear-resistant coating
It is shown.The preparation of wear-resistant coating includes the following steps:
Step 1, epoxy resin, polyurethane are added in reaction kettle, stir evenly acquisition matrix;
Step 2, silicon powder is added in matrix, stirs evenly and obtains masterbatch;
Step 3, masterbatch is added in 3-aminopropyltriethoxysilane and lauryl carboxymethyl sodium form imidazoline acetate
In, stir evenly acquisition wear-resistant paint;
Step 4, wear-resistant paint is coated on screw body 1, is heating and curing to form wear-resistant coating.
Embodiment 6 the difference is that, is counted in parts by weight with embodiment 5, the raw material components such as table 1 of wear-resistant coating
It is shown.
Comparative example 1, difference from example 1 is that, it counts in parts by weight, the raw material components such as table 1 of wear-resistant coating
It is shown.The preparation of wear-resistant coating includes the following steps:
Step 1, epoxy resin, polyurethane are added in reaction kettle, stir evenly acquisition matrix;
Step 2, nano zine oxide is added in matrix, stirs evenly and obtains masterbatch;
Step 3, masterbatch is added in 3-aminopropyltriethoxysilane and lauryl carboxymethyl sodium form imidazoline acetate
In, stir evenly acquisition wear-resistant paint;
Step 4, wear-resistant paint is coated on screw body 1, is heating and curing to form wear-resistant coating.
Comparative example 2 the difference is that, is counted in parts by weight with comparative example 1, the raw material components such as table 1 of wear-resistant coating
It is shown.
Comparative example 3, difference from example 1 is that, it counts in parts by weight, the raw material components such as table 1 of wear-resistant coating
It is shown.The preparation of wear-resistant coating includes the following steps:
Step 1, silicon powder and nano zine oxide are added to epoxy resin, stir evenly and obtain masterbatch;
Step 2, masterbatch is added in 3-aminopropyltriethoxysilane and lauryl carboxymethyl sodium form imidazoline acetate
In, stir evenly acquisition wear-resistant paint;
Step 3, wear-resistant paint is coated on screw body 1, is heating and curing to form wear-resistant coating.
Comparative example 4 the difference is that, is counted in parts by weight with comparative example 3, the raw material components such as table 1 of wear-resistant coating
It is shown.
Wherein, the wear extent for testing wear-resistant coating under conditions of 1000r with reference to national standard GB/T1768-2006, with evaluation
The wear-resisting property of wear-resistant coating, test result are as shown in table 1.
Table 1
Table 1- is continuous
Specific embodiment is only explanation of the invention, is not intended to restrict the invention, all designs in the present invention
Within design, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of tapping screw, including screw body (1), it is characterised in that:The outer surface of the screw body (1) is coated with resistance to
Coating is ground, is counted in parts by weight, the wear-resistant coating raw material includes following components,
2. a kind of tapping screw according to claim 1, it is characterised in that:It counts in parts by weight, the wear-resistant coating is former
Material includes following components,
3. a kind of tapping screw according to claim 1, it is characterised in that:The screw body (1) includes screw rod (11)
Twisting slot (121) is offered with the upper surface of nut (12), the nut (12), the wear-resistant coating covers the upper of nut (12)
The inner wall of surface and twisting slot (121).
4. a kind of tapping screw according to claim 1, it is characterised in that:It counts in parts by weight, the wear-resistant coating is former
Material includes 3-5 parts of 3-aminopropyltriethoxysilane.
5. a kind of tapping screw according to claim 1, it is characterised in that:The curing agent is set as lauryl carboxymethyl
Sodium form imidazoline acetate.
6. a kind of tapping screw according to claim 1, it is characterised in that:It counts in parts by weight, the wear-resistant coating is former
Material includes 2-4 parts of zinc oxide.
7. a kind of tapping screw according to claim 6, it is characterised in that:The zinc oxide is set as nano zine oxide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810466436.8A CN108587402A (en) | 2018-05-16 | 2018-05-16 | A kind of tapping screw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810466436.8A CN108587402A (en) | 2018-05-16 | 2018-05-16 | A kind of tapping screw |
Publications (1)
Publication Number | Publication Date |
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CN108587402A true CN108587402A (en) | 2018-09-28 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201810466436.8A Pending CN108587402A (en) | 2018-05-16 | 2018-05-16 | A kind of tapping screw |
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CN116855163A (en) * | 2023-06-06 | 2023-10-10 | 海洋化工研究院有限公司 | Flexible pressure-sensitive color-changing anti-corrosion primer, preparation method and application thereof, and intelligent threaded fastener with visible fastening degree |
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CN116855163A (en) * | 2023-06-06 | 2023-10-10 | 海洋化工研究院有限公司 | Flexible pressure-sensitive color-changing anti-corrosion primer, preparation method and application thereof, and intelligent threaded fastener with visible fastening degree |
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