PL62074B1

PL62074B1 -

Info

Publication number: PL62074B1
Application number: PL129539A
Authority: PL
Inventors: Wesolowski Kornel; Presz Jan
Original assignee: Spóldzielnia Pracy Przetworów Technochemicznych „Skoli¬Mów"
Filing date: 1968-10-15
Publication date: 1970-12-30

Description

Nastepnie próbki te wazy sie i oblicza, ubytek masy w gramach. Pozostale dwie serie próbek po dziewiec sztuk bada sie wedlug tego samego schematu w odstepach po piec minut, nie sto- 10 sujac próbki wstepnej. Jezeli przerwa miedzy seriami próbek przekroczy dziesiec minut, nalezy przed bada¬ niem polerowac próbke wstepna.I Umowne cieplo polerowania oblicza sie z wzoru: 25 30 Cp _ AQ / dm \ cal 9 gdzie: AQ — przyrost ciepla w polerowanych próbkach obliczony wedlug zasad kalorymetrii, dm — ubytek masy próbek w wyniku polerowa¬ nia, Jako umowne cieplo polerowania dla badanej pasty przyjmuje sie wartosc srednia artymetyczna z pomiarów trzech serii próbek po dziewiec sztuk. Jezeli która z se- 35 rii zostanie wykonana nieprawidlowo, nalezy powtórzyc Jtadanie calej serii na nowo oklejonej tarczy.Urzadzenie do stosowania sposobu wedlug wynalazku jest uwidocznione w przykladzie wykonania na rysun¬ ku, na którym fig. 1 przedstawia urzadzenie w widoku 40 z boku, a fig. 2 — urzadzenie w widoku z góry.Urzadzenie wedlug wynalazku jest wyposazone w tarcze polerska L osadzona na walku % obracanym za pomoca pasowego kpla 3, napedzanego przez nie uwi¬ doczniony na rysunku silnik elektryczny, Walek % jest 45 osadzony w lozysku 4 przymocowanym do wierzcholka podwójnego stojaka 5, spoczywajacego na plycie 4 sto¬ lu polerki.Urzadzenie do badania próbek stanowi dwuramienna dzwignia 7, której jeden koniec, zwrócony w kierunku 50 tarczy 1, jest zaopatrzony w uchwyt 8, sluzacy do przy¬ trzymywania badanej próbki, na przeciwleglym zas kon¬ cu tej dzwigni jest zamocowany króeisc 9, sluzacy do osadzania poszczególnych segmentów obciaznika 10 re¬ gulujacego sile docisku badanej próbki do roboczej po- 55 wierzchni tarczy 1, Dzwignia 7 urzadzenia osadzona jest na poziomej osi 11, co pozwala obu koncom tej dzwigni na wykonywa¬ nie ruchów w plaszczyznie pionowej, a poniewaz os 11 jest osadzona w szczekach uchwytu 12 osadzonego w 60 tujei 13 z mozliwoscia obrotu w plaszczyznie poziomej, przeto konce dzwigni moga równiez wykonywac ruch w tej plaszczyznie, Niezaleznie od tych ruchów, dzwig¬ nia 7 moze wykonywac ruch posuwisto-zwrotny, ponie¬ waz tuleja 13 jest umocowana na suwaku 14, #przezo- 65 nym za pomoca korbowodu 15 % mlmosrodem %6 kola62074 5 6 zamachowego 17, przy czym suwak ten porusza sie w prowadnicach 18 osadzonych na plycie 6 stolu urzadze¬ nia.W celu nadania uchwytowi 8 ruchu o kierunku po¬ przecznym w stosunku do kierunku ruchu posuwisto- zwrotnego, przeciwlegly koniec dzwigni 7 jest zaopa¬ trzony z jednej strony w wodzik 19, którego koncówka podczas pracy urzadzenia, slizgajaca sie po bocznej po¬ wierzchni plytki 20, majacej sinusoidalne wybrania, a z drugiej strony sprezynowy docisk 21 powoduja, ze oba konce dzwigni 7, a tym samym uchwyt 8 wraz z umie¬ szczona na nim badana próbka, wykonuje jednoczesnie ruch posuwisto-zwrotny i ruch poprzeczny. Plytka 20 i docisk 21 osadzone sa na wspornikach 22 na takiej wysokosci, aby dzwignia 7 podczas pracy miala pozio¬ me lub prawie poziome polozenie. Ruch wzdluzny próbki wynosi 50 mm, a okres tego ruchu wynosi jedna sekunde, natomiast ruch poprzeczny próbki na 2,5 mm i trwa 0,1 sekundy. PL PLThese samples are then weighed and the loss in weight in grams is calculated. The other two series of nine samples are tested according to the same scheme at five-minute intervals without using a preliminary sample. If the interval between the series of samples exceeds ten minutes, the preliminary sample should be polished before the test. I The conventional polishing heat is calculated from the formula: 25 30 Cp _ AQ / dm \ inch 9 where: AQ - heat increase in polished samples calculated according to the principles of calorimetry , dm - weight loss of samples as a result of polishing. As conventional polishing heat for the tested paste, the artimetic mean value from the measurements of three series of samples of nine samples is taken. If one of the series is performed incorrectly, the entire series must be repeated on the newly glued disc. The device for applying the method according to the invention is shown in the embodiment in the drawing in which Fig. 1 shows the device in a side view, and Fig. 2 is a top view of the device. The device according to the invention is equipped with a polishing wheel L mounted on a roller rotated by a belt choke 3, driven by the electric motor shown in the drawing, the roller% is mounted in a bearing 4 attached to the top of the double stand 5, resting on the plate 4 of the polishing table. The apparatus for testing the samples is a two-armed lever 7, the one end of which facing 50 of the disk 1 is provided with a handle 8 for holding the test sample, and at the opposite end of this lever, a stub 9 is mounted, which serves to seat individual segments of the weight 10 regulating the contact force of the tested p. The handle 7 of the device is mounted on the horizontal axis 11, which allows both ends of the lever to make movements in a vertical plane, and because the axis 11 is embedded in the jaws of the handle 12 embedded in 60 thujas 13 with the possibility of rotation in the horizontal plane, therefore the ends of the lever can also make a movement in this plane. Regardless of these movements, the lever 7 can make a reciprocating movement because the sleeve 13 is fixed on the slide 14, by means of a connecting rod 15% in the atmosphere of the flywheel 17, the slider moving in the guides 18 mounted on the table plate 6 of the device. In order to give the handle 8 a movement transverse to the direction of the reciprocating movement. the reverse, the opposite end of the lever 7 is provided on one side with a slider 19, the end of which, during operation of the device, sliding on the side surface of the plate 20, having sinusoidal recesses, until on the other side, the spring pressure 21 causes the two ends of the lever 7, and thus the handle 8 with the test sample placed thereon, to perform a reciprocating and lateral movement simultaneously. The plate 20 and the clamp 21 are mounted on the supports 22 at such a height that the lever 7 during operation has a horizontal or almost horizontal position. The longitudinal movement of the sample is 50 mm and the period of this movement is one second, and the lateral movement of the sample is 2.5 mm and lasts 0.1 seconds. PL PL

Claims

1. Patent claims 1. A method of testing the quality of polishing pastes of any consistency, consisting in the initial standard preparation of samples made of the material from which the objects to be polished are made the tested paste by grinding them on a felt disc covered with with carborundum, and then polishing these samples on a felt wheel, lubricated with the test paste, characterized in that the test sample is simultaneously reciprocating and transverse, and in order to determine the polishing ability of metals, the test samples are polished in groups, preferably three pieces in each, the pads are lubricated with felt paste at the beginning of each sample group, and after finishing the polishing of the entire series, preferably consisting of three groups, the samples are cleaned of paste residues using a flannel and Viennese lime, and then the gloss is measured with Lange's gloss meter, taking measurements along the concentric axis and the transverse to the direction of grinding, then the arithmetic mean of the polishes of the individual groups of samples is calculated, giving a general evaluation of the polishing ability of the tested paste, while the general index of the cutting ability of the tested paste is established on the basis of the arithmetic mean weight loss of the three groups of polished samples which weight loss is weighed on the analytical balance.

2. The method according to claim The method of claim 1, characterized in that during the polishing of the test specimen, uniform pressure of said specimen against the working surface of the polishing wheel is applied.

3. The method according to p. The method of claim 1, characterized in that the period of longitudinal movement of the sample with respect to the period of lateral movement is most preferably 1 to 0.1.

4. Device for applying the method according to claim 1 - 3, characterized in that it is equipped with a rotating disc (1) and a two-armed lever (7), on the end of which, facing the dial, a handle (8) is attached to hold the test samples, and a weight (10) is placed on the opposite end. ), regulating the force of pressure of the test sample to the working surface of the disc, while the lever (7) is mounted on a horizontal axis (11) located in the jaws of the handle (12), which can be rotated in a sleeve (13) connected with its base to with a flat slider (14), reciprocating in the guides (18) by means of the connecting rod (15).

5. Device according to claim A device as claimed in claim 4, characterized in that it is provided with a mechanism giving the handle (8) a lateral movement in a horizontal plane, consisting of a plate (20), a slider (19) and a spring-loaded catch; pressure (21). 15 20 25 3dKI. 42 k, 38/01 62074 MKP G 01 n, 19/00 12 8 5 7 11 12 9 10 f / ffJKI. 42 k, 38/01 62074 MKP Gflln, 19/00 s and 4 i a ts ma% 2 PL PL