CN202208101U - Alloy screw rod - Google Patents
Alloy screw rod Download PDFInfo
- Publication number
- CN202208101U CN202208101U CN2011202899023U CN201120289902U CN202208101U CN 202208101 U CN202208101 U CN 202208101U CN 2011202899023 U CN2011202899023 U CN 2011202899023U CN 201120289902 U CN201120289902 U CN 201120289902U CN 202208101 U CN202208101 U CN 202208101U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- alloy
- homogenizing
- segment
- rod body
- 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.)
- Expired - Lifetime
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 16
- 239000000956 alloy Substances 0.000 title claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 229910001080 W alloy Inorganic materials 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000001291 vacuum drying Methods 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 238000010792 warming Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 235000013495 cobalt Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- -1 tungsten carbides Chemical class 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
- B29C48/615—Threads having varying helix angles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
An alloy screw rod comprises a screw rod body (2), wherein the screw rod body (2) comprises a feeding segment (A), a melting segment (B), and a homogenizing, mixing and extruding segment (C) in sequence; and screw edges (1) are arranged on the melting segment (B) and the homogenizing, mixing and extruding segment (C). The alloy screw rod is characterized in that a carbonized tungsten alloy layer (3) is coated on the outer peripheral face of the screw rod body (2). Compared with the prior art, the alloy screw rod has the advantages that the carbonized tungsten alloy layer made of NiCrCoVWcB or CoCrNiVWcB is melted on the outer peripheral face of the screw rod, thereby effectively improving the corrosion resistance and abrasion resistance of the screw rod and greatly prolonging the service life of the screw rod; besides, the mixture ratio of the components of alloy powder on the screw rod is appropriate, and the thickness of the alloy powder on the screw rod is reasonable, so as to achieve a good using effect and save the production cost.
Description
Technical field
The utility model relates to a kind of screw rod field, especially refers to a kind of alloy screw rod.
Background technology
There is a kind of patent No. to disclose a kind of screw rod that the halide-free low-smoke fireproof cable plastics are extruded that is used in the prior art for the Chinese utility model patent that the CN200820231086.9 name is called " a kind of be used for the screw rod that the halide-free low-smoke fireproof cable plastics are extruded "; Its draw ratio is 20-25: 1; The length of feeding section is 35～45% of screw rod working portion total length, and the length of compression section is 30～40% of screw rod working portion total length; The spiral groove depth of screw rod homogenizing zone is 0.08～0.12 of a screw rod external diameter; The compression ratio of compression section is 1.2～1.4; Screw head is the truncated cone structure of cutting sth. askew, cone-apex angle 60～120., cut sth. askew cross section and screw rod cross section angle: 10～20. The screw rod center is processed with the axial deep hole that is used for logical cooling water, and this axial deep hole is extended internally by the rear end, terminates in the intersection of compression section and homogenizing zone.This screw rod has solved the requirement of cable industry preferably---can squeeze the halide-free low-smoke fireproof cable plastics, can squeeze common plastics again, improved usage ratio of equipment, reduced unnecessary equipment input.But; The Halogen plastics are plastics that a kind of corrosivity is strong, wear intensity is high; The screw rod that general raw material are processed is easy to corrosion and wearing and tearing; This screw rod does not have the alloy-layer that the screw rod anticorrosive anti-wear is decreased is set at the outer peripheral face of screw rod, so the corrosion resistance of screw rod and anti-wear performance are relatively poor, so its structure awaits to improve.
Summary of the invention
The utility model technical problem to be solved is to above-mentioned prior art present situation a kind of corrosion-resistant, anti abrasive a kind of alloy screw rod to be provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this alloy screw rod; Include the screw rod body; Said screw rod body is made up of feeding section, melt zone, the mixing extruding zone of homogenizing successively; The mixing extruding zone of melt zone and homogenizing is provided with the spiral shell rib, it is characterized in that: be enclosed with the diamondite layer on spiral shell rib on said feeding section, melt zone, the mixing extruding zone of homogenizing and the external side face of screw rod.
As improvement, the thickness of said diamondite layer is 0.5～1mm, can reach corrosion-resistant, anti abrasive effect like this, can save material again simultaneously.
Improve, said spiral shell rib and the formed angle of screw rod body horizontal line are 85～90 ° again.
Compared with prior art; The advantage of the utility model is: layer of Ni CrCoVWcB or CoCrNiVWcB are arranged is the diamondite layer of material in welding on the outer peripheral face of this screw rod; Thereby improved the performance of the corrosion and the wearing and tearing of screw rod effectively, screw rod is prolonged service life significantly; Also have the proportioning of each composition of alloyed powder in this screw rod appropriate, thickness is reasonable, and not only result of use is good, and saves production cost.In sum, the utility model has solved a screw rod difficult problem perishable, easy to wear well, and has prolonged the service life of screw rod, is the very practical bolt special of developing to the Halogen plastics.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the partial sectional view of Fig. 1.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1; This alloy screw rod; Include screw rod body 2; Said screw rod body 2 is made up of feeding section A, melt zone B, the mixing extruding zone C of homogenizing successively, and the mixing extruding zone C of melt zone B and homogenizing is provided with spiral shell rib 1, it is characterized in that: be enclosed with diamondite layer 3 on spiral shell rib 1 on said feeding section A, melt zone B, the mixing extruding zone C of homogenizing and screw rod body 2 outer peripheral faces.The thickness H of above-mentioned diamondite layer 3 is 0.5～1mm.Above-mentioned spiral shell rib 1 is 85～90 ° with the formed angle of screw rod body 2 horizontal lines.
The preparation method of the alloy screw rod of present embodiment may further comprise the steps:
One, selecting 42CrMo or SKD61 is the body of the alloy of material as screw rod, and by specification and length blanking, described 42CrMo or SKD61 are known metal material, all can find on the net;
Two, the body after the blanking is carried out roughing, to the plus tolerance 1mm of drawing specification, then body is milled screw channel and polishing, to the negative common difference 1～1.5mm that presses the drawing specification of screw channel, the keyway of reprocessing screw rod forms the screw rod (being screw rod body 2) of moulding;
Three, the screw rod with moulding carries out vacuum hardening, and the hardness that makes screw rod is HRC48～52; The step of said vacuum hardening is: one, earlier screw rod is positioned in the vacuum drying oven, is warming up to 550～600 ℃, be incubated 1.5～2 hours, and two, in vacuum drying oven, make screw rod be warming up to 850～900 ℃ then, be incubated 1～2 hour; Three, then continue in vacuum drying oven, screw rod to be warming up to 1000～1200 ℃, screw rod is warming up to 1000～1200 ℃ temperature retention time and does; By screw diameter is to be calculating in 20～50 minutes its retention time of every 25mm; Four, extruder temperature stops to feed nitrogen when feeding nitrogen is cooled to 90～100 ℃ with the screw rod in the vacuum drying oven in described vacuum drying oven after 1000～1200 ℃ of insulations, makes screw rod in vacuum drying oven, naturally cool to 30～50 ℃; Five, will be cooled to 30～50 ℃ of screw rods and in vacuum drying oven, be warming up to 540～560 ℃; Be incubated 2～2.5 hours; With naturally cooling to 30～50 ℃ in the screw rod vacuum drying oven again, the recuperation above-mentioned steps is after the hardness of screw rod to be detected reaches HRC48～52 then; Screw rod is taken out from vacuum drying oven, promptly accomplish the step of vacuum hardening.Said is that every 25mm keeps calculating in 20～50 minutes by diameter, is 30mm like: diameter, and then the retention time is 24～60 minutes.
Four, mill spiral shell rib to external diameter reaches the negative common difference 1～1.5mm by the drawing specification on the screw rod after the quenching;
Five, with sand-blasting machine screw rod integral body is carried out the sandblast meltallizing, make screw surface form matsurface;
Six, be ejected on the outer surface of screw rod with the alloyed powder liquation of spray gun after with fusion, on the screw channel of screw rod and spiral shell rib outer peripheral face, superscribe one deck diamondite layer, thickness H is 0.5～1mm; Alloyed powder can be preferably NiCrCoVWcB or CoCrNiVWcB, wherein, adopts the prescription of NiCrCoVWcB to be: by per 100 parts of calculating; 3～4 parts of boron (B), 10.5～15 parts of tungsten carbides (Wc), 2.5～3 parts of vanadium (V); 3～5 parts of cobalts (Co), 13～16.5 parts of chromium (Cr), all the other shares are nickel (Ni); Adopt the prescription of CoCrNiVWcB to be: by per 100 parts of calculating, 1～2 part of boron (B), 17.5～25 parts of tungsten carbides (Wc), 2～3 parts of vanadium (V), 3～7 parts in nickel (Ni), 28～32 parts of chromium (Cr), all the other shares are cobalt (Co), the above-mentioned weight portion that all refers to;
Seven, the screw rod behind the meltallizing is polished through the boart boart band, and on skive, finish grind, to the precision of drawing requirement, before warehouse-in, coat antirust grease or lacquer in its surface then, the packing warehouse-in is the finished product screw rod again.
Described negative common difference is meant the meaning that screw rod is little or thinner than normal diameter, is 200mm like the normal diameter of drawing, and its negative common difference is the screw rod of 0.05mm, and then its diameter should be 200-0.05 * 2=199.9mm.
Claims (3)
1. alloy screw rod; Include screw rod body (2); Said screw rod body (2) is made up of feeding section (A), melt zone (B), the mixing extruding zone of homogenizing (C) successively; Melt zone (B) and the mixing extruding zone of homogenizing (C) are provided with spiral shell rib (1), it is characterized in that: be enclosed with diamondite layer (3) on spiral shell rib (1) on said feeding section (A), melt zone (B), the mixing extruding zone of homogenizing (C) and screw rod body (2) outer peripheral face.
2. alloy screw rod according to claim 1 is characterized in that: the thickness (H) of said diamondite layer (3) is 0.5～1mm.
3. alloy screw rod according to claim 1 is characterized in that: said spiral shell rib (1) is 85～90 ° with the formed angle of screw rod body (2) horizontal line (α).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202899023U CN202208101U (en) | 2011-08-10 | 2011-08-10 | Alloy screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202899023U CN202208101U (en) | 2011-08-10 | 2011-08-10 | Alloy screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202208101U true CN202208101U (en) | 2012-05-02 |
Family
ID=45987657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202899023U Expired - Lifetime CN202208101U (en) | 2011-08-10 | 2011-08-10 | Alloy screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202208101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773991A (en) * | 2012-06-21 | 2012-11-14 | 浙江华业塑料机械有限公司 | Metallic screw and manufacturing method for same |
| CN103101179A (en) * | 2013-02-25 | 2013-05-15 | 中国矿业大学 | Manufacturing method of halogen-free and glass fiber reinforced plastic-containing extruder screw |
-
2011
- 2011-08-10 CN CN2011202899023U patent/CN202208101U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773991A (en) * | 2012-06-21 | 2012-11-14 | 浙江华业塑料机械有限公司 | Metallic screw and manufacturing method for same |
| CN102773991B (en) * | 2012-06-21 | 2015-07-01 | 浙江华业塑料机械有限公司 | Metallic screw and manufacturing method for same |
| CN103101179A (en) * | 2013-02-25 | 2013-05-15 | 中国矿业大学 | Manufacturing method of halogen-free and glass fiber reinforced plastic-containing extruder screw |
| CN103101179B (en) * | 2013-02-25 | 2017-03-08 | 中国矿业大学 | A kind of Halogen extruder screw containing fiberglass reinforced plastics manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160322 Address after: 316032, 26-28, Xin Qiao Road, Lek port, Jintang Town, Dinghai District, Zhejiang, Zhoushan Patentee after: Zhejiang Refined Machinery Co., Ltd. Address before: 316032, 26-28, Xin Qiao Road, Lek port, Jintang Town, Dinghai District, Zhejiang, Zhoushan Patentee before: Zhou Jianjun |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120502 |
|
| CX01 | Expiry of patent term |