CN205238528U - Tapered double machine barrel - Google Patents
Tapered double machine barrel Download PDFInfo
- Publication number
- CN205238528U CN205238528U CN201520857781.6U CN201520857781U CN205238528U CN 205238528 U CN205238528 U CN 205238528U CN 201520857781 U CN201520857781 U CN 201520857781U CN 205238528 U CN205238528 U CN 205238528U
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- China
- Prior art keywords
- machine barrel
- inner chamber
- barrel inner
- forging
- barrel
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Abstract
The utility model provides a tapered double machine barrel, barrel body (1) is for forging the forging that carries out quenching and tempering after beating after homogenization treatment rough machining again, barrel inner chamber (2) crossing bell mouths of the parallel pore wall of 2 axis for being used for holding the twin -screw for barrel inner chamber (2) cross sectional shape " 8 " font that is the accumbency for forming by 2 crossing circles, barrel inner chamber (2) reduce to discharge gate (4) barrel inner chamber (2) from feed inlets (3) gradually, and there is the one deck on barrel inner chamber (2) surface through the nitrogen treatment and nitride layer (5) that form. Its advantage lies in: owing to carry out quenching and tempering's forging after its adoption is forged and is beaten again after homogenization treatment rough machining, there is the one deck on barrel inner chamber surface through the nitrogen treatment and the nitride layer who forms makes barrel inner chamber surface solidly and not fragile in addition, has good wearability and corrosion -resistant ability, can guarantee the quality of plastic products for a long time, self long service life.
Description
Technical field
The utility model relates to a kind of spiro rod machine tube, especially refers to a kind of firm wear-resisting cone double machine barrel.
Background technology
The run after fame Chinese invention patent that is called " a kind of machine barrel of extruding ultrahigh molecular weight polyethylene " of existing a kind of application number CN201310315216.2 discloses a kind of machine barrel of extruding ultrahigh molecular weight polyethylene, and the viscosity existing in ultra-high molecular weight polyethylene production process is large in order to solve for object, poor fluidity, easily break and the problem such as degraded. This extruder barrel adopts groove machine barrel, and pin is set on it, and pin is provided with copper sheathing outward. The extruder barrel of this invention can increase the frictional force of material and machine barrel, thereby keep very strong forward conveying capacity, be easy to plasticizing and batch mixing, pin on it is convenient for changing, the effect that copper sheathing outside pin can play sealing, location and regulate, thus the extrusion efficiency of extruder and the quality of ultra-high molecular weight polyethylene improved. But anti-wear performance is poor inside the barrel of this invention, service life is shorter, therefore, is necessary this invention to do to improve further.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of long service life, firm wear-resisting cone double machine barrel for above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above adopted technical scheme: the machine barrel of this double-screw plastic extrusion machine, it is characterized in that: described machine barrel body is the forging that carries out again modifier treatment after forging after normalized treatment roughing, machine barrel inner chamber is 2 crossing bellmouths of the parallel hole wall of axis for holding twin-screw, make machine barrel intracavity section be shaped as the figure of eight that is accumbency that intersects circle and form by 2, described machine barrel inner chamber dwindles gradually from charging aperture to discharging opening machine barrel inner chamber, machine barrel surface of internal cavity has one deck via nitride to process and the nitration case of formation.
As improvement, described nitration case thickness is 0.5mm to 0.7mm.
Further improve, described nitration case thickness can be preferably 0.6mm.
As improvement, the axis parallel degree of 2 bellmouths of described machine barrel inner chamber can be preferably 0 to 0.1mm.
As improvement, one section of cylindrical shell of the discharging opening of described machine barrel can be preferably the alloy section of being made up of high strength alloy steel.
Further improve, the alloy segment length of the discharging opening of described machine barrel is 340mm to 360mm.
Further improve, the alloy segment length of the discharging opening of described machine barrel can be preferably 350mm.
Compared with prior art, the advantage of cone double machine barrel of the present utility model is: because it adopts the forging that carries out again modifier treatment after forging after normalized treatment roughing, and machine barrel surface of internal cavity has one deck via nitride to process and the nitration case of formation, make machine barrel surface of internal cavity hard and not crisp, there is good wearability and corrosion resistance, can ensure for a long time the quality of plastic products, self long service life.
Brief description of the drawings
Fig. 1 be the utility model embodiment partly cut open figure;
Fig. 2 is that the P of Fig. 1 is to view;
Fig. 3 is that the K of Fig. 1 is to view;
Fig. 4 is the position B profile of Fig. 1;
Fig. 5 is the position F profile of Fig. 1.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail.
As shown in Figure 1 to Figure 5, wherein, this cone double machine barrel, the forging of described machine barrel body 1 for carrying out again modifier treatment after forging after normalized treatment roughing, machine barrel inner chamber 2 is for holding 2 crossing bellmouths of the parallel hole wall of axis of twin-screw, making machine barrel inner chamber 2 cross sectional shapes is to intersect by 2 the figure of eight that is accumbency that circle forms, described machine barrel inner chamber 2 dwindles to discharging opening 4 machine barrel inner chambers 2 gradually from charging aperture 3, and machine barrel inner chamber 2 surfaces have one deck via nitride to process and the nitration case 5 of formation. Described nitration case 5 thickness are 0.5mm to 0.7mm. Described nitration case 5 thickness are 0.6mm. The axis parallel degree of 2 bellmouths of described machine barrel inner chamber 2 is 0 to 0.1mm. One section of cylindrical shell of the discharging opening 4 of described machine barrel is the alloy section of being made up of high strength alloy steel. The alloy segment length L of the discharging opening 3 of described machine barrel is 340mm to 360mm. The alloy segment length L of the discharging opening 3 of described machine barrel is 350mm.
Claims (7)
1. a cone double machine barrel, it is characterized in that: the forging of machine barrel body (1) for carrying out again modifier treatment after forging after normalized treatment roughing, machine barrel inner chamber (2) is for holding 2 crossing bellmouths of the parallel hole wall of axis of twin-screw, making machine barrel inner chamber (2) cross sectional shape is to intersect by 2 the figure of eight that is accumbency that circle forms, described machine barrel inner chamber (2) dwindles gradually from charging aperture (3) to discharging opening (4) machine barrel inner chamber (2), machine barrel inner chamber (2) surface has one deck via nitride to process and the nitration case (5) of formation.
2. cone double machine barrel according to claim 1, is characterized in that: described nitration case (5) thickness is 0.5mm to 0.7mm.
3. cone double machine barrel according to claim 2, is characterized in that: described nitration case (5) thickness is 0.6mm.
4. according to arbitrary described cone double machine barrel in claims 1 to 3, it is characterized in that: the axis parallel degree of 2 bellmouths of described machine barrel inner chamber (2) is 0 to 0.1mm.
5. according to arbitrary described cone double machine barrel in claims 1 to 3, it is characterized in that: one section of cylindrical shell of the discharging opening (4) of described machine barrel is the alloy section (11) of being made up of high strength alloy steel.
6. cone double machine barrel according to claim 5, is characterized in that: the alloy segment length (L) of the discharging opening (3) of described machine barrel is 340mm to 360mm.
7. cone double machine barrel according to claim 6, is characterized in that: the alloy segment length (L) of the discharging opening (3) of described machine barrel is 350mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520857781.6U CN205238528U (en) | 2015-10-28 | 2015-10-28 | Tapered double machine barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520857781.6U CN205238528U (en) | 2015-10-28 | 2015-10-28 | Tapered double machine barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205238528U true CN205238528U (en) | 2016-05-18 |
Family
ID=55937603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520857781.6U Active CN205238528U (en) | 2015-10-28 | 2015-10-28 | Tapered double machine barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205238528U (en) |
-
2015
- 2015-10-28 CN CN201520857781.6U patent/CN205238528U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |