CN106182690A - A kind of cone double machine barrel - Google Patents
A kind of cone double machine barrel Download PDFInfo
- Publication number
- CN106182690A CN106182690A CN201610754246.7A CN201610754246A CN106182690A CN 106182690 A CN106182690 A CN 106182690A CN 201610754246 A CN201610754246 A CN 201610754246A CN 106182690 A CN106182690 A CN 106182690A
- Authority
- CN
- China
- Prior art keywords
- machine barrel
- discharging section
- inner chamber
- cone double
- weight 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
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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
- B29C48/68—Barrels or cylinders
- B29C48/6803—Materials, coating or lining therefor
-
- 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
- B29C48/68—Barrels or cylinders
- B29C48/682—Barrels or cylinders for twin screws
Abstract
nullA kind of cone double machine barrel，Machine barrel inner chamber (2) is parallel for accommodating two axis of twin screw、The bellmouth that hole wall intersects，Making machine barrel inner chamber (2) cross sectional shape is to be intersected, by two, the figure of eight in accumbency that circle is formed，Described machine barrel inner chamber (2) from feed end to discharge end decreasing pore size，Described machine barrel (1) is formed by connecting with discharging section (4) by feed zone (3)，It is characterized in that: in described discharging section (4) inwall, be axially spaced to have the bar-shaped trough of N bar，In described bar-shaped trough, it is placed with alloyed powder respectively and forms wear rib (8) through flame fusing，Described wear rib (8) surface forms discharging section wearing layer with discharging section (4) internal face，The interior cavity wall of feed zone (3) is respectively arranged with one layer of via nitride processes and the nitration case (81) that formed with on the wearing layer surface of discharging section (4)，Described N is the natural number of 6～12.The advantage of this cone double machine barrel is: have good wearability and corrosion resistance, can ensure the quality of plastic for a long time；Machine barrel self is long for service life.
Description
Technical field
The present invention relates to a kind of spiro rod machine tube, a kind of firm wear-resisting cone double machine barrel.
Background technology
Existing a kind of application number CN201310315216.2 is the entitled " machine of a kind of extruding ultrahigh molecular weight polyethylene
Cylinder " Chinese invention patent disclose the machine barrel of a kind of extruding ultrahigh molecular weight polyethylene, purpose is in order to solve super high molecular weight
The problems such as present in polythene production process viscosity is big, poor fluidity, easily rupturable and degraded.This extruder barrel uses groove
Machine barrel, and pin is set on it, copper sheathing is installed outside pin.The extruder barrel of this invention can increase rubbing of material and machine barrel
Wiping power, thus keep the strongest forward conveying capacity, it is easy to plasticizing and batch mixing, pin thereon is convenient for changing, the copper outside pin
Set can play sealing, the effect positioning and regulating, thus improves the extrusion efficiency of extruder and ultra-high molecular weight polyethylene
Quality.But, inside the barrel of this invention, anti-wear performance is poor, and service life is shorter, therefore, it is necessary to make this invention into one
Step ground improves.
Summary of the invention
The technical problem to be solved is to provide a kind of machine tube inner wall for above-mentioned prior art present situation more
Wear-resisting and make longer cone double machine barrel in machine barrel service life.
The present invention solves the technical scheme that above-mentioned technical problem used: this cone double machine barrel, machine barrel inner chamber is for being used for holding
The bellmouth that two axis of twin screw received are parallel, hole wall intersects so that machine barrel intracavity section be shaped as being intersected circle by two and
The figure of eight in accumbency formed, described machine barrel inner chamber is from feed end to discharge end decreasing pore size, and described machine barrel is by feeding
Section is formed by connecting with discharging section, it is characterised in that: in described discharging section inwall, it is axially spaced to have the bar-shaped trough of N bar,
Described bar-shaped trough is placed with alloyed powder respectively and forms wear rib, described wear rib surface and discharging section inwall through flame fusing
Face forms discharging section wearing layer, is respectively arranged with one layer of warp with on the wearing layer surface of discharging section on the interior cavity wall of feed zone
Nitrogen treatment and the nitration case that formed, described N is the natural number of 6～12.
As improvement, described nitride thickness is preferably 0.8mm to 0.9mm.
As improvement, the nearly discharge port end of the discharging section of described machine barrel is preferably provided with one section and is made up of high strength alloy steel
Alloy section.
As improvement, the connection end of described feed zone is preferably provided with feed end flange, the connection end of described discharging section
Be provided with discharge end flange, be connected with bolt between described feed end flange and discharge end flange, and feed end flange with
Between discharge end flange, sealing ring is set.
Improve further, between described feed end flange and discharge end flange, venthole is preferably set.
Improving further, described venthole is preferably by being opened in the half bore of feed end flange side and being opened in discharge end
The half bore merging of flange side forms.
Improve further, the feed end flange of described machine barrel with preferably scabble into one above discharge end flange and little put down
Platform, it is two that described venthole is offered to machine barrel inner chamber by this chain-wales, and leaving certain gaps uncovered by the economic plan at machine tube inner wall.
Improving further, the inwall of described venthole is preferably involute structure.
As improvement, the manufacture method of described nitration case is: cone double machine barrel is put into and carried out nitrogen treatment in gas nitriding furnace,
The step of nitrogen treatment is: first machine barrel inner chamber is heated up to 500～535 DEG C, control nitridation resolution ratio between 20～28%,
It is incubated to 23.6～24.4 hours, then machine barrel inner chamber is heated up to 545～560 DEG C further, control nitridation resolution ratio and exist
Between 50～55%, insulation 49.6～50.4 hours, finally machine barrel inner chamber is further heated up to 565～570 DEG C, controls
Nitridation resolution ratio between 90～95%, insulation 1～2 hours.
As improvement, the formula of described alloyed powder is: described formula is in the weight portion of 100 parts: tungsten 3～4 weight portion, ferrum
6～7 weight portions, molybdenum 15～16 weight portion, chromium 15～16 weight portion, silicon 0.5～1 weight portion, boron 0.01～0.02 weight portion, carbon
0.05～0.06 weight portion, remaining is nickel；Described alloyed powder is placed in bar-shaped trough, by flame by melted for alloyed powder and bar-shaped trough
It is welded together, then after naturally cool to 69～71 DEG C, then the machine barrel that temperature is 69～71 DEG C is placed in 350～450 DEG C
Vacuum drying oven is tempered 2～3 hours；Again to the polishing of discharging section internal perisporium, the wearing layer of polishing formation discharging section.
Compared with prior art, the invention provides and a kind of stablize durable cone double machine barrel, owing to its discharging section inner chamber sets
Putting by alloyed powder and melt the wear rib formed through flame, wear rib surface forms discharging section wearing layer with discharging section internal face,
Be provided with one layer of via nitride on the wearing layer surface of discharging section to process and the nitration case that formed, therefore have more preferable wearability with
Corrosion resistance, can ensure the quality of plastic for a long time；The interior cavity wall of feed zone is also equipped with nitration case, it is ensured that in machine barrel
The smooth degree that wall is overall, extends the service life of machine barrel the most further；Further, described wear rib preferably plays except having
Outside wearability is with corrosion resistance, and the nitration case of described wear rib can more preferably rise when wear rib fusing is arranged on machine tube inner wall
To the effect of binder course, make wearing layer more firm with machine barrel welding.
Accompanying drawing explanation
The front view of Fig. 1 embodiment of the present invention machine barrel；
Fig. 2 is the profile in Fig. 1 along line C-C；
Fig. 3 is the profile in Fig. 1 along line D-D；
Fig. 4 is the profile in Fig. 1 along line A-A；
Fig. 5 is the profile in Fig. 1 along line B-B；
Fig. 6 is the axonometric chart of embodiment of the present invention machine barrel；
Fig. 7 is the schematic perspective view of machine barrel feed zone and discharging section released state.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
As described in Fig. 1 to Fig. 7, this cone double machine barrel, machine barrel inner chamber 2 is that two axis of twin screw are parallel, hole for accommodating
The bellmouth that wall intersects so that machine barrel inner chamber 2 cross sectional shape is to be intersected the figure of eight in accumbency that circle is formed, institute by two
State machine barrel inner chamber 2 to be formed by connecting with discharging section 4 by feed zone 3 from feed end to discharge end decreasing pore size, described machine barrel 1,
In described discharging section 4 inwall, it is axially spaced to have the bar-shaped trough of N bar, in described bar-shaped trough, is placed with alloyed powder respectively also
Forming wear rib 8 through flame fusing, described wear rib 8 surface forms discharging section wearing layer with discharging section 4 internal face, at feed zone
It is respectively arranged with one layer of via nitride processes and the nitration case 81 that formed with on the wearing layer surface of discharging section 4 on the interior cavity wall of 3,
Described N is the natural number of 6～12.Described nitration case 81 thickness is 0.8mm to 0.9mm.Closely going out of the discharging section 4 of described machine barrel 1
Material mouth end is provided with one section of alloy section X being made up of high strength alloy steel.The connection end of described feed zone 3 is provided with feed end flange
5, the connection end of described discharging section 4 is provided with discharge end flange 6, uses bolt between described feed end flange 5 and discharge end flange 6
7 are connected, and arrange sealing ring between feed end flange 5 and discharge end flange 6.Described feed end flange 5 and discharging hold-carrying
Between blue 6, venthole 10 is set.Described venthole 10 is by being opened in the half bore 11 of feed end flange 5 side and being opened in discharge end
Half bore 11 merging of flange 6 side forms.The feed end flange 5 of described machine barrel 1 is with to scabble into one above discharge end flange 6 little
Platform 12, it is two that described venthole 10 is offered to machine barrel inner chamber 2 by this chain-wales 12, and leaving certain gaps uncovered by the economic plan at machine tube inner wall
13.The inwall of described venthole 10 is involute structure.The manufacture method of described nitration case 81 is: cone double machine barrel puts into the GN 2
Changing in stove and carry out nitrogen treatment, the step of nitrogen treatment is: first machine barrel inner chamber 2 is heated up to 500～535 DEG C, controls nitridation
Resolution ratio, between 20～28%, is incubated to 23.6～24.4 hours, then machine barrel inner chamber 2 is heated up to further 545～
560 DEG C, control nitridation resolution ratio between 50～55%, insulation 49.6～50.4 hours, finally machine barrel inner chamber 2 is entered one again
Step is heated up to 565～570 DEG C, controls nitridation resolution ratio between 90～95%, insulation 1～2 hours.Joining of described alloyed powder
Fang Wei: described formula is in the weight portion of 100 parts: tungsten 3～4 weight portion, ferrum 6～7 weight portion, molybdenum 15～16 weight portion, chromium 15
～16 weight portions, silicon 0.5～1 weight portion, boron 0.01～0.02 weight portion, carbon 0.05～0.06 weight portion, remaining is nickel；Described
Alloyed powder is placed in bar-shaped trough, is welded together melted for alloyed powder with bar-shaped trough, then after naturally cool to 69 by flame
～71 DEG C, then the machine barrel 1 that temperature is 69～71 DEG C is placed in the vacuum drying oven of 350～450 DEG C tempering 2～3 hours；Again to discharging
Section 4 internal perisporium polishing, polishing form the wearing layer of discharging section 4.
Claims (10)
1. a cone double machine barrel, machine barrel inner chamber (2) is for accommodating the taper that two axis of twin screw are parallel, hole wall is crossing
Hole so that machine barrel inner chamber (2) cross sectional shape is to be intersected the figure of eight in accumbency that circle is formed, described machine barrel inner chamber by two
(2) from feed end to discharge end decreasing pore size, described machine barrel (1) is formed by connecting with discharging section (4) by feed zone (3), its
It is characterised by: in described discharging section (4) inwall, be axially spaced to have the bar-shaped trough of N bar, put respectively in described bar-shaped trough
Being equipped with alloyed powder and form wear rib (8) through flame fusing, described wear rib (8) surface is formed out with discharging section (4) internal face
Material section wearing layer, is respectively arranged with one layer through nitrogen with on the wearing layer surface of discharging section (4) on the interior cavity wall of feed zone (3)
The nitration case (81) that change processes and formed, described N is the natural number of 6～12.
Cone double machine barrel the most according to claim 1, it is characterised in that: described nitration case (81) thickness be 0.8mm extremely
0.9mm。
Cone double machine barrel the most according to claim 1 and 2, it is characterised in that: closely going out of discharging section (4) of described machine barrel (1)
Material mouth end is provided with one section of alloy section (X) being made up of high strength alloy steel.
Cone double machine barrel the most according to claim 1 and 2, it is characterised in that: the connection end of described feed zone (3) be provided with into
Material end flanges (5), the connection end of described discharging section (4) is provided with discharge end flange (6), described feed end flange (5) and discharging
It is connected with bolt (7) between end flanges (6), and sealing ring is set between feed end flange (5) and discharge end flange (6).
Cone double machine barrel the most according to claim 4, it is characterised in that: described feed end flange (5) and discharge end flange (6)
Between venthole (10) is set.
Cone double machine barrel the most according to claim 5, it is characterised in that: described venthole (10) is by being opened in feed end flange
(5) half bore (11) of side merges with the half bore (11) being opened in discharge end flange (6) side and forms.
Cone double machine barrel the most according to claim 6, it is characterised in that: the feed end flange (5) of described machine barrel (1) and discharging
Scabbling into a chain-wales (12) above end flanges (6), described venthole (10) is opened to machine barrel inner chamber (2) by this chain-wales (12)
It is set to two, and leaving certain gaps uncovered by the economic plan at machine tube inner wall (13).
8. according to the cone double machine barrel described in claim 6 or 7, it is characterised in that: the inwall of described venthole (10) is involute
Structure.
Cone double machine barrel the most according to claim 1 and 2, it is characterised in that: the manufacture method of described nitration case (81) is: cone
Double machine barrel is put into and is carried out nitrogen treatment in gas nitriding furnace, and the step of nitrogen treatment is: be first heated up to by machine barrel inner chamber (2)
500～535 DEG C, control nitridation resolution ratio is between 20～28%, and insulation to 23.6～24.4 hours, then to machine barrel inner chamber
(2) it is heated up to 545～560 DEG C further, controls nitridation resolution ratio between 50～55%, insulation 49.6～50.4 hours,
Finally machine barrel inner chamber (2) being further heated up to 565～570 DEG C, control nitridation resolution ratio, between 90～95%, is incubated 1
～2 hours.
Cone double machine barrel the most according to claim 1 and 2, it is characterised in that: the formula of described alloyed powder is: described formula
In the weight portion of 100 parts: tungsten 3～4 weight portion, ferrum 6～7 weight portion, molybdenum 15～16 weight portion, chromium 15～16 weight portion, silicon
0.5～1 weight portion, boron 0.01～0.02 weight portion, carbon 0.05～0.06 weight portion, remaining is nickel；Described alloyed powder is placed in bar
In shape groove, it is welded together melted for alloyed powder with bar-shaped trough, then after naturally cool to 69～71 DEG C, then by temperature by flame
Degree is that the machine barrel (1) of 69～71 DEG C is placed in the vacuum drying oven of 350～450 DEG C tempering 2～3 hours；Again to discharging section (4) internal perisporium
Polishing, polishing form the wearing layer of discharging section (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754246.7A CN106182690A (en) | 2016-08-17 | 2016-08-17 | A kind of cone double machine barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610754246.7A CN106182690A (en) | 2016-08-17 | 2016-08-17 | A kind of cone double machine barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106182690A true CN106182690A (en) | 2016-12-07 |
Family
ID=57526583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610754246.7A Pending CN106182690A (en) | 2016-08-17 | 2016-08-17 | A kind of cone double machine barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106182690A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626318A (en) * | 2016-12-28 | 2017-05-10 | 浙江光明塑料机械有限公司 | Conical dual machine tube |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204054613U (en) * | 2013-12-30 | 2014-12-31 | 广东联塑机器制造有限公司 | A kind of total length solder alloy conical double screw extruder machine barrel |
| CN105235188A (en) * | 2015-10-28 | 2016-01-13 | 浙江光明塑料机械有限公司 | Cone double barrel |
-
2016
- 2016-08-17 CN CN201610754246.7A patent/CN106182690A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204054613U (en) * | 2013-12-30 | 2014-12-31 | 广东联塑机器制造有限公司 | A kind of total length solder alloy conical double screw extruder machine barrel |
| CN105235188A (en) * | 2015-10-28 | 2016-01-13 | 浙江光明塑料机械有限公司 | Cone double barrel |
Non-Patent Citations (2)
| Title |
|---|
| 王立军等: "《航空工程材料与成形工艺基础（第2版）》", 30 June 2015, 北京航空航天大学出版社 * |
| 高荣发等: "《等离子弧喷焊》", 30 September 1979, 机械工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106626318A (en) * | 2016-12-28 | 2017-05-10 | 浙江光明塑料机械有限公司 | Conical dual machine tube |
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Legal Events
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |