摘要:
Verfahren zum Herstellen von, insbesondere faserverstärkten, thermoplastischen Kunststoffteilen in einer Spritzgießmaschine (3), wobei das Verfahren das Zusammenführen eines polymeren Vorprodukts (V), eines Aktivators (A) und eines Katalysators (K) beinhaltet, wobei die Spritzgießmaschine (3) eine erste Plastifizierschnecke (1) und eine zweite Plastifizierschnecke (2), die jeweils in einem Plastifizierzylinder (18) angeordnet sind, aufweist, wobei mit der ersten Plastifizierschnecke (1) das polymere Vorprodukt (V) und der Aktivator (A) ohne Hinzufügen des Katalysators (K) vermischt und im Wesentlichen verflüssigt werden und mit der zweiten Plastifizierschnecke (2) das polymere Vorprodukt (V) und der Katalysator (K) ohne Hinzufügen des Aktivators (A) vermischt und im Wesentlichen verflüssigt werden, wonach die mit den beiden Plastifizierschnecken (1, 2) verflüssigten Inhalte (VK, VA) vermischt und gemeinsam in eine Spritzgießform (4) eingebracht werden und im Wesentlichen erst dort zum Kunststoffteil polymerisieren.
摘要:
A mixing device for bone cement is provided. The mixing device includes a mixing handle, an housing, and a mixing paddle. The mixing handle having a rod, where at least portions of the rod are in tubular form with monomer inside of the rod. The housing has a mixing chamber in which the monomer and a powder are miscible. The mixing paddle is arranged in the mixing chamber and is movable via the rod.
摘要:
The present invention provides a rubber kneading machine that obviates the need for an operator to touch rubber on a rotating roll surface to perform a rubber kneading operation, permits an unattended operation, is intrinsically safe, permits improved productivity of a rubber kneading process, secure stable quality of kneaded rubber, and allows a closed rubber supplying mechanism to be easily opened and exposed for easy cleaning. The rubber kneading machine is equipped with two horizontal rolls 1 and 2 closely disposed vertically, decelerators 16a and 16b and variable speed motors 15a and 15b for rotating the rolls at different speeds, and a screw extruder 3 for supplying a rubber lump fed into a hopper 4 at a proximal end to the rolls. A rubber circulating mechanism is constructed mainly of a scraper 33 and a belt conveyor 34, or a belt conveyor 35 above the upper roll 1 to feed a rubber sheet, which has left the rolls 1 and 2, to the hopper 4. Furthermore, a mechanism for releasing the screw extruder 3 is provided to make it possible to open and expose closed portions to facilitate cleaning.
摘要:
The invention relates to a process for the production of thermoplastic moulding compounds, in particular ABS, wherein at least a first reagent (11) and a second reagent (12) of the thermoplastic moulding compounds are fed to a gear pump (10) which comprises a housing and at least a first gear wheel that is rotatable relative to the housing about a first axis, and a second gear wheel that is rotatable relative to the housing about a second axis, wherein a loop conduit (29) is provided, and wherein the reagents (11, 12) are pressed in a loop through the loop conduit (29) and passing the gear wheels, whereby the reagents (11, 12) are dispersed to form a dispersion (15) in the gear pump (10). The invention also relates to a thermoplastic moulding compound that is produced by the inventive process.
摘要:
A rubber kneading machine, comprising two rolls (1, 2) horizontally and closely disposed in vertical direction, speed reducers (16a, 16b) and variable speed motors (15a, 15b) for variably rotating these rolls, a screw extruder (3) for supplying rubber lumps charged into a hopper (4) at a base end between the rolls, a rubber circulating mechanism having a scraper (33) and a belt conveyor (34) or a belt conveyor (35) over the upper roll (1) for feeding a rubber sheet delivered from the rolls (1, 2) to the hopper (4), and a screw extruder (3) opening mechanism to open and expose the inside of the closed part of a rubber feeding mechanism for facilitating cleaning, whereby a worker must not bring a rotating roll surface into contact with rubber for rubber kneading operation, unmanned operation is also allowed substantially safely, a productivity can be increased in a rubber kneading process, the quality of kneaded rubber can be stably assured, and the rubber feeding mechanism of closed structure can be easily opened and exposed for facilitated cleaning.
摘要:
In a method for implementing mechanical, chemical and/or thermal processes in a product which is located in a housing (1) with mixing and cleaning elements and/or transporting elements (6) on at least one shaft (4, 5), and is transported via said elements (6) from an inlet (2) to an output (10), the intention is for a cross section of the housing (1) to be adjusted in variable fashion at least once in the longitudinal direction thereof.