CN107725558A - Constitutionally stable screw - Google Patents
Constitutionally stable screw Download PDFInfo
- Publication number
- CN107725558A CN107725558A CN201710977264.6A CN201710977264A CN107725558A CN 107725558 A CN107725558 A CN 107725558A CN 201710977264 A CN201710977264 A CN 201710977264A CN 107725558 A CN107725558 A CN 107725558A
- Authority
- CN
- China
- Prior art keywords
- screw
- metal level
- constitutionally stable
- ceramic filler
- filler portion
- 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
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000002184 metal Substances 0.000 claims abstract description 32
- 239000000919 ceramic Substances 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 8
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000003746 surface roughness Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 21
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 9
- 239000010962 carbon steel Substances 0.000 claims description 9
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/02—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws divided longitudinally
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
Abstract
The present invention discloses a kind of constitutionally stable screw, described constitutionally stable screw includes nut and screw rod, the screw rod includes ceramic filler portion and is arranged on the metal level of ceramic filler portion outer layer, the metal level outer layer is provided with installation screw thread, the nut is fixed by the installation screw thread with the screw rod, the ceramic filler portion is silicon nitride ceramics, the range of surface roughness in the ceramic filler portion is 0.2 2 microns, the present invention provides a kind of constitutionally stable screw, with light quality, stable performance, the advantages of good structural stability.
Description
Technical field
The present invention relates to a kind of constitutionally stable screw.
Background technology
Screw, be front end it is acuminous that, pitch is larger, is generally used for fastening wooden part, ceramic member, is common in machine
Tool, electrical equipment and building etc., generally metal are manufactured, cylindrical, and irregular ditch is carved on surface, and such as one around screw side
Inclined plane, screw can tightly be locked and writes cap nut or other objects.The top diameter of screw is larger, can be rounded or waits six sides
Shape, allows the rotatable screw of instrument such as screwdriver or spanner.More prominent top also makes screw drilled will not deeply pass through very much
Material, and improve pressure of the screw to material.Existing screw is all to use bulk metal structure, quality weight, and materials cost is high,
As equipment securing member, shared weight is bigger in a device, be unfavorable for reduce equipment total quality, influence production,
The links such as transport and use.
The content of the invention
The present invention, which provides one kind, has a light quality, stable performance, good structural stability advantage it is constitutionally stable
Screw.
The technical scheme is that：A kind of constitutionally stable screw, described constitutionally stable screw include nut and
Screw rod, the screw rod includes ceramic filler portion and is arranged on the metal level of ceramic filler portion outer layer, on the metal level outer layer
Provided with installation screw thread, the nut is fixed by the installation screw thread with the screw rod, and the ceramic filler portion makes pottery for silicon nitride
Porcelain, the range of surface roughness in the ceramic filler portion is 0.2-2 microns, and the metal level includes carbon steel and nonferrous metal, institute
The carbon steel stated accounts for the 41%-47% of metal level totality component, and described nonferrous material accounts for the 53%-59% of metal level totality component.
In a preferred embodiment of the present invention, described nonferrous metal is ferrous alloy.
In a preferred embodiment of the present invention, described carbon steel accounts for the 46% of metal level totality component, described non-iron material
Material accounts for the 54% of metal level totality component.
A kind of constitutionally stable screw of the present invention, has a light quality, stable performance, good structural stability it is excellent
Point.
Embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defined so as to be made to protection scope of the present invention.
Wherein, described constitutionally stable screw includes nut and screw rod, and the screw rod includes ceramic filler portion and set
The metal level in ceramic filler portion outer layer is put, the metal level outer layer is provided with installation screw thread, and the nut passes through the installation
Screw thread is fixed with the screw rod, and the ceramic filler portion is silicon nitride ceramics, the range of surface roughness in the ceramic filler portion
For 0.2-2 microns, the metal level includes carbon steel and nonferrous metal, and described carbon steel accounts for the 41%-47% of metal level totality component,
Described nonferrous material accounts for the 53%-59% of metal level totality component.
Further illustrating, described nonferrous metal is ferrous alloy, and described carbon steel accounts for the 46% of metal level totality component,
Described nonferrous material accounts for the 54% of metal level totality component.
Further illustrate, silicon nitride ceramics there is the processing temperature scope of a preferable plasticizing, it should control barrel to process
Temperature, it is allowed to close to this temperature range.Particulate ceramic enters feeding cylinder from hopper, can reach feeding section first, must in feeding section
So occur that dryness rubs, when the heated deficiency of these ceramics, when melting uneven, easily cause very much material tube inner wall and screw surface abrasion
Increase.Equally, in compression section and homogenizing zone, if the molten condition of ceramics is disorderly uneven, it will also result in abrasion and speed.2nd, rotating speed
Answer adjustment proper.Because part ceramics are added with hardening agent, such as glass fibre, mineral matter or other inserts.These materials are to gold
The friction for belonging to material is often more much bigger than fused ceramic.Be molded these it is ceramic when, if with high rotating speed into carrying
While height is to ceramic shearing force, also military order hardening constituent answers ground to produce the fiber being more shredded, and the fiber being shredded contains
Sharp distal tip, abrasive forces are made to greatly increase.For inorganic mineral in metal surface high speed slide, its scraping action is not also small.Institute
Get Tai Gao should not be adjusted with rotating speed.3rd, screw rod rotates in machine barrel, material and the friction of the two, makes the working surface of screw rod and machine barrel
Gradually wear out：Screw diameter is gradually reduced, and the diameter of bore of machine barrel is gradually increased.So, between the fit diameter of screw rod and machine barrel
Gap, little by little increased with gradually wearing out for the two.But because the resistance of head and flow distribution plate does not change before machine barrel
Become, this adds increased the leakage current amount being extruded when material advances, i.e. material increases at diametric clearance to feedstock direction amount of flow.
As a result decline plastic machine output.This phenomenon again increases material residence time in machine barrel, causes material to decompose.Such as
Fruit is polyvinyl chloride, and hydrogen chloride gas caused by decomposition strengthens the corrosion to screw rod and machine barrel.4th, if any calcium carbonate in material
With the inserts such as glass fibre, the abrasion of screw rod and machine barrel can be accelerated.5th, because material does not plastify uniformly, or there is metal
Foreign matter is mixed into material, screw rod driving torque power is increased suddenly, and this moment of torsion exceeds the strength degree of screw rod, twists off screw rod.
This is a kind of unconventional accident fault.The present invention provides a kind of constitutionally stable screw, has a light quality, and stable performance is good
The advantages of structural stability got well.
The embodiment of the present invention, but protection scope of the present invention is not limited thereto, any to be familiar with this area
Technical staff disclosed herein technical scope in, the change or replacement that can expect without creative work should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be with protection model that claims are limited
Enclose and be defined.
Claims (3)
- A kind of 1. constitutionally stable screw, it is characterised in that：Described constitutionally stable screw includes nut and screw rod, the spiral shell Bar includes ceramic filler portion and is arranged on the metal level of ceramic filler portion outer layer, and the metal level outer layer is provided with installation spiral shell Line, the nut are fixed by the installation screw thread with the screw rod, and the ceramic filler portion is silicon nitride ceramics, the ceramics The range of surface roughness of filling part is 0.2-2 microns, and the metal level includes carbon steel and nonferrous metal, and described carbon steel accounts for gold Belong to the 41%-47% of layer totality component, described nonferrous material accounts for the 53%-59% of metal level totality component.
- 2. constitutionally stable screw according to claim 1, it is characterised in that：Described nonferrous metal is ferrous alloy.
- 3. constitutionally stable screw according to claim 1, it is characterised in that：Described carbon steel accounts for metal level totality component 46%, described nonferrous material accounts for the 54% of metal level totality component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977264.6A CN107725558A (en) | 2017-10-19 | 2017-10-19 | Constitutionally stable screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977264.6A CN107725558A (en) | 2017-10-19 | 2017-10-19 | Constitutionally stable screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107725558A true CN107725558A (en) | 2018-02-23 |
Family
ID=61210717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710977264.6A Pending CN107725558A (en) | 2017-10-19 | 2017-10-19 | Constitutionally stable screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725558A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110299958A1 (en) * | 2010-06-04 | 2011-12-08 | Richard Lee | Anti-loosen self-tapping screw |
| CN103302287A (en) * | 2013-06-18 | 2013-09-18 | 华北电力大学 | Iron-based amorphous powder for wear-resisting and corrosion-resisting coating and preparation method thereof |
| CN105422580A (en) * | 2015-11-18 | 2016-03-23 | 宁波瑞尔汽车零部件有限公司 | Low-density bolt |
| CN105443545A (en) * | 2015-11-18 | 2016-03-30 | 宁波金鹏高强度紧固件有限公司 | Long nut |
| CN206446091U (en) * | 2017-01-17 | 2017-08-29 | 苏州艾盾合金材料有限公司 | A kind of neck bush in double-screw extruding machine barrel |
-
2017
- 2017-10-19 CN CN201710977264.6A patent/CN107725558A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110299958A1 (en) * | 2010-06-04 | 2011-12-08 | Richard Lee | Anti-loosen self-tapping screw |
| CN103302287A (en) * | 2013-06-18 | 2013-09-18 | 华北电力大学 | Iron-based amorphous powder for wear-resisting and corrosion-resisting coating and preparation method thereof |
| CN105422580A (en) * | 2015-11-18 | 2016-03-23 | 宁波瑞尔汽车零部件有限公司 | Low-density bolt |
| CN105443545A (en) * | 2015-11-18 | 2016-03-30 | 宁波金鹏高强度紧固件有限公司 | Long nut |
| CN206446091U (en) * | 2017-01-17 | 2017-08-29 | 苏州艾盾合金材料有限公司 | A kind of neck bush in double-screw extruding machine barrel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| 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 |
Application publication date: 20180223 |
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| RJ01 | Rejection of invention patent application after publication |