Barrel Spacer
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Barrel Spacer
In one embodiment of the single screw extruder
In one embodiment of the present single screw extruder, the tiles are made of carbide or tungsten-carbide. In another preferred embodiment of the present twin screw extruder, the step of securing further comprises brazing, soldering, or gluing.
The present sheet production extruder, accordingly, provides a method of applying a plurality of tiles to a flighting crest of at least one thread of an extruder screw. A groove is formed along the crest. Each tile is then inserted into the groove, wherein the tiles are in a spaced-apart arrangement. The tiles are then secured into the groove. In one preferred embodiment of the present invention, the groove is formed in the extruder screw when the extruder screw threads is cast. In yet another preferred embodiment of the present invention, the groove is cut into the crest after the extruder screw has been cast. In yet another alternative embodiment of the present invention, the tiles are further ground to remove any protruding edges and to fit within the tolerances of an extruder barrel. Another alternative embodiment of the present invention, further comprises inserting a spacer into spaces between the tiles; and securing the spacers.
In another preferred embodiment of the present invention, plates of a wear-resistant material are secured to at least one leading edge of the extruder screw threads in a spaced-apart arrangement.
Additionally, the present invention also provides an apparatus for extruding. An extruding screw having at least one thread with a crest and having a groove formed therein is provided. Also, there are a plurality of tiles formed of a hardened materials secured within the groove in a spaced-apart arrangement. In an alternative embodiment of the present invention, the hardened material is carbide or tungsten-carbide. In another alternative embodiment of the present invention the tiles are secured by brazing, soldering, or gluing. In another preferred embodiment of the present twin screw extruder, spacers secured between the tiles.
Additionally, in yet another preferred embodiment of the present single screw extruder, a plurality of plates made of the hardened material are secured to the crest in a spaced-apart arrangement.
This news from : http://giant.chinaifactory.com/news/item_5912.html
About the Author
single screw extruder，twin screw extruder
I have a stock HEI ignition system should I upgrade?
1978 Chevy Silverado with a 350. The engine has had some upgrades Edelbrock four barrel, K&N air filter, Headman Headers, RV cam, after market fuel pump. Stock one just wasn't giving it the fuel it needed. Also a 2" Carb spacer. It pushes about 250hp. Will I gain anything buy upgrading or will the factory Distributor handle it.
It also was a set of Taylor plug wires
The stock HEI module and coil should be fine as it is a really good system. Since you upgraded the carb and cam I have to mention that if you haven't done it yet try playing around with different advance weights and springs to see if it helps. If you really want to go nuts put on an MSD 6AL or any of its newer counterparts and clones but I would wire in a 4 pole double throw switch on the dash to bypass the aftermarket ignition box in case it dies on the road for whatever reason. The 6AL is known to let the smoke out at times if it doesn't have a good stable power supply which means a good alternator and a direct connection to the battery.
PolarStar Airsoft VSR-10 G-SPEC Delrin Barrel Spacers