| Technical Information for Conical Twin Screw Barrel | |||
| Main Base materials | 1.38CrMoAlA (SACM645) | Main Alloy Materials | 1. Ni-based alloy/Deloro alloy |
| 2. SKD-61 (Special Tool Steel) | 2. Tungsten carbide/Wolfram carbide | ||
| 3. 42CrMo (Ultrahigh StrengthSteel) | 3. NiCo-based alloy | ||
| 4. DC53 (Cold WorkDie Steel) | 4. Fe-based alloy | ||
| 5. W6Mo5Cr4V2 (High-SpeedToolSteel) | 5. Co-based alloy | ||
| Processing Technics | 1. Heat treatment | Technical parameters | Nitriding layer depth:0.5-0.8mm |
| 2. Quenching | Nitrided hardness:900-1000HV | ||
| 3. Nitriding treatment | Bimetallic layer depth:3 mm | ||
| 4. Bimetallic alloy welding for screw | Bimetallic hardness:57~69HRC | ||
| 5. Bimetallic alloy centrifugal casting for barrel | Hard-chrome plating hardness after nitriding:≥950HV | ||
| 6. Hard-chrome electroplating | Chrome-plating layer depth:0.03-0.09mm | ||
| Linearity of screw:0.015mm | Surface roughness:Ra 0.4 | ||
| The most common types of conical twin screw barrel extruder | |||
| types of screw (d/D) | length of work(mm) | quantity ofextruder(kg/h) | speed of screw rotate(rpm) |
| Φ35/77 | 810 | 40-70 | 5~50 |
| Φ45/99 | 990 | 50-80 | 5~45 |
| Φ51/105 | 1070 | 100-150 | 4~45 |
| Φ51/105 | 1220 | 100-150 | 4~45 |
| Φ55/110 | 1220 | 120-180 | 4~40 |
| Φ60/125 | 1320 | 150-200 | 4~40 |
| Φ65/120 | 1440 | 200-250 | 4~40 |
| Φ65/132 | 1440 | 200-250 | 4~40 |
| Φ70/140 | 1460 | 220-300 | 4~40 |
| Φ75/150 | 1480 | 250-320 | 4~35 |
| Φ80/143 | 1660 | 300-360 | 4~35 |
| Φ80/156 | 1800 | 300-360 | 4~35 |
| Φ90/184 | 2000 | 400-500 | 3~35 |
| The most common types of parallel twin screw barrel extruder | ||||||
| D35/5 | D45/2 | D50/2 | D60/2 | D65/2 | D70/2Â Â | D72/2 |
| D75/2 | D80/2 | D85/2 | D90/2 | D93/2 | D100/2 | D105/2 |
| D110/2 | D115/2 | D120/2 | D125/2 | D130/2 | D140/2 | D150/2 |
| D160/2 | D170/2 | D180/2 | D190/2 | D200/2 | D200/2 | D250/2 |
Screw types:
Gradual change, chop, barrier, distributary, separate, air exhausting, pin, mixing and etc.
For good plasticizing effect, we have different design of screw barrel to meet customer's demand.
Specification :
Dia 20mm-250mm; L/D=15-45
Scope of Application:
1. Generally plastic material
2. Pipe/ Profile/ Sheet/Pelletizing
3. WPC, ABS, TPR, TPU, PMMA, C-PVC, UPVC, RPVC, PET, EVA, PU,PE etc
Treatment:
Nitrized, Chrome coating, Quenching, Bimetallic
We are foucs on each process to make sure each screw barrel is qualified according to technical requirement.Â
Packaging Details:
1. Be brushed anti-corrosive oil on extruder machine single screw.Â
2. Packed with film.Â
3. Packed in the AA wooden.
Please provide samples or requirements about dimensions and tolerances of , semi-finished and finished products, the equipment, the monthlly comsumption quantity, the current screw and barrel you are using, HRC and so on.
For more information, please kindly contact as below:
Mobile: 0086-13917356326
| Technical Information for Conical Twin Screw Barrel | |||
| Main Base materials | 1.38CrMoAlA (SACM645) | Main Alloy Materials | 1. Ni-based alloy/Deloro alloy |
| 2. SKD-61 (Special Tool Steel) | 2. Tungsten carbide/Wolfram carbide | ||
| 3. 42CrMo (Ultrahigh StrengthSteel) | 3. NiCo-based alloy | ||
| 4. DC53 (Cold WorkDie Steel) | 4. Fe-based alloy | ||
| 5. W6Mo5Cr4V2 (High-SpeedToolSteel) | 5. Co-based alloy | ||
| Processing Technics | 1. Heat treatment | Technical parameters | Nitriding layer depth:0.5-0.8mm |
| 2. Quenching | Nitrided hardness:900-1000HV | ||
| 3. Nitriding treatment | Bimetallic layer depth:3 mm | ||
| 4. Bimetallic alloy welding for screw | Bimetallic hardness:57~69HRC | ||
| 5. Bimetallic alloy centrifugal casting for barrel | Hard-chrome plating hardness after nitriding:≥950HV | ||
| 6. Hard-chrome electroplating | Chrome-plating layer depth:0.03-0.09mm | ||
| Linearity of screw:0.015mm | Surface roughness:Ra 0.4 | ||
| The most common types of conical twin screw barrel extruder | |||
| types of screw (d/D) | length of work(mm) | quantity ofextruder(kg/h) | speed of screw rotate(rpm) |
| Φ35/77 | 810 | 40-70 | 5~50 |
| Φ45/99 | 990 | 50-80 | 5~45 |
| Φ51/105 | 1070 | 100-150 | 4~45 |
| Φ51/105 | 1220 | 100-150 | 4~45 |
| Φ55/110 | 1220 | 120-180 | 4~40 |
| Φ60/125 | 1320 | 150-200 | 4~40 |
| Φ65/120 | 1440 | 200-250 | 4~40 |
| Φ65/132 | 1440 | 200-250 | 4~40 |
| Φ70/140 | 1460 | 220-300 | 4~40 |
| Φ75/150 | 1480 | 250-320 | 4~35 |
| Φ80/143 | 1660 | 300-360 | 4~35 |
| Φ80/156 | 1800 | 300-360 | 4~35 |
| Φ90/184 | 2000 | 400-500 | 3~35 |
| The most common types of parallel twin screw barrel extruder | ||||||
| D35/5 | D45/2 | D50/2 | D60/2 | D65/2 | D70/2Â Â | D72/2 |
| D75/2 | D80/2 | D85/2 | D90/2 | D93/2 | D100/2 | D105/2 |
| D110/2 | D115/2 | D120/2 | D125/2 | D130/2 | D140/2 | D150/2 |
| D160/2 | D170/2 | D180/2 | D190/2 | D200/2 | D200/2 | D250/2 |
Screw types:
Gradual change, chop, barrier, distributary, separate, air exhausting, pin, mixing and etc.
For good plasticizing effect, we have different design of screw barrel to meet customer's demand.
Specification :
Dia 20mm-250mm; L/D=15-45
Scope of Application:
1. Generally plastic material
2. Pipe/ Profile/ Sheet/Pelletizing
3. WPC, ABS, TPR, TPU, PMMA, C-PVC, UPVC, RPVC, PET, EVA, PU,PE etc
Treatment:
Nitrized, Chrome coating, Quenching, Bimetallic
We are foucs on each process to make sure each screw barrel is qualified according to technical requirement.Â
Packaging Details:
1. Be brushed anti-corrosive oil on extruder machine single screw.Â
2. Packed with film.Â
3. Packed in the AA wooden.
Please provide samples or requirements about dimensions and tolerances of , semi-finished and finished products, the equipment, the monthlly comsumption quantity, the current screw and barrel you are using, HRC and so on.
For more information, please kindly contact as below:
Mobile: 0086-13917356326
Chemical parts investment casting is one branch of Alloy Steel Precision Casting, which is widely used in chemical industry markets. Casting for chemical parts adopts lost wax casting, also called investment casting.
In wax pattern process,we mix stearic acid and paraffin wax. In wax pattern making, as you know, it is better than polyethylene, and the wax deformation is small. In dipping slurry process, most of the suppliers adopt water glass technics in domestic area,but we adopt compound technics or silica sol technics.
In shell making,we adopt automatic sand-covering production line, which was invented under the guidance of our general manager.The indoor temperature was controlled by air-conditions,keeping the temperature at 24℃±1℃, which can make the castings much more stable,the internal tissues much more well-proportioned.
In dewaxing process, about 95% of the castings suppliers adopt the original water dewaxing technics, but we using the advanced steam dewaxing technics, which we are very proud of.This can effectively avoid the air-hole and sand-hole,making the casting look much nicer.
In smelt process,we use middle frequency furnace,avoiding the emergence of the oxide; in molten steel control part, we use Germany-imported direct reading spectrometer machine,assuring its quality before the molten steel out of the furnace. During this process we use ERP production and management software to get the feedback information.
In heat treatment process, we use electric furnace,and adopt double-temperature control in order to heat the products equally. As a result, the products will have great metallurgical structure.
Our tolerance can reach at the grade of 5-7 according to our country`s tolerance standard.
In machining process, we have 12 CNC machining centers and some other machines, so we can make further machining if the customers need.
Our chemical parts investment cast has quality assurance in accordance with ISO9001: 2008, strict material inspection and exact dimension control, with 100% quality control. OEM order is welcome. The investment casting of chemical parts can be made completely based on your specifications such as drawing, design, sample etc.
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Wei fang junlong precision casting Co.,Ltd , https://www.junlongcasting.com