DE4200224A1 - Micro-heating press mfr. of very thin polymer layers - uses ball and freely movable plate to press sample in slide plates between heated blocks - Google Patents

Micro-heating press mfr. of very thin polymer layers - uses ball and freely movable plate to press sample in slide plates between heated blocks

Info

Publication number
DE4200224A1
DE4200224A1 DE19924200224 DE4200224A DE4200224A1 DE 4200224 A1 DE4200224 A1 DE 4200224A1 DE 19924200224 DE19924200224 DE 19924200224 DE 4200224 A DE4200224 A DE 4200224A DE 4200224 A1 DE4200224 A1 DE 4200224A1
Authority
DE
Germany
Prior art keywords
press
sample
movable plate
freely movable
mfr
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19924200224
Other languages
German (de)
Inventor
Ernst-Georg Dr Med Hohagen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOHAGEN ERNST GEORG DR MED
Original Assignee
HOHAGEN ERNST GEORG DR MED
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HOHAGEN ERNST GEORG DR MED filed Critical HOHAGEN ERNST GEORG DR MED
Priority to DE19924200224 priority Critical patent/DE4200224A1/en
Publication of DE4200224A1 publication Critical patent/DE4200224A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/062—Press plates
    • B30B15/064—Press plates with heating or cooling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/068—Drive connections, e.g. pivotal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/2813—Producing thin layers of samples on a substrate, e.g. smearing, spinning-on

Abstract

A microscopically thin layer of material is produced in a microheating press using heat and pressure. The material sample is placed between a glass slide and a covering plate before pressing between heated blocks. Precise flatness of the pressed sample is achieved by applying force through a ball and a freely movable plate. USE/ADVANTAGE - The appts. produces precision test samples of polymeric material used in phase control and polarisation processes. The sample is inexpensive to produce and has perfectly parallel faces.

Description

Vorrichtung zur Herstellung mikroskopisch dünner Schichten von thermo­ plastischen Kunststoffen mittels einer Mikrothermopresse.Device for producing microscopic layers of thermo plastic plastics by means of a Microthermal press.

Bisher bekannte Geräte, die zur Herstellung mikroskopischer Präparate von thermoplastischen Kunststoffen dienen, sind:Previously known devices used to manufacture microscopic specimens of thermoplastic materials are:

  • 1. Schlittenmikrotome1. Slide microtomes
  • 2. Gefrierschnittmikrotome2. Freeze-cut microtomes
  • 3. Ultramikrotome3. Ultramicrotomes
  • 4.. Schleifverfahren.4 .. grinding process.

Abgesehen von dem großen Arbeitsaufwand beim Gebrauch obiger Geräte versagen diese bei bestimmten Untersuchungen während eines Produk­ tionsprozesses in Forschung und Technik. Plastische Komponenten im Material wie z. B. Kautschuk sind nur bei extrem tiefen Minustempe­ raturen hinreichend schneidbar. Die üblichen Gefrierschnittmikrotome sind daher nicht mehr brauchbar.Apart from the large amount of work involved in using the above devices these fail during certain tests during a product process in research and technology. Plastic components in the Material such as B. Rubber are only at extremely low minus temperatures fittings can be cut sufficiently. The usual frozen section microtomes are therefore no longer usable.

  • 1. Das neue Verfahren zur Herstellung mikroskopisch dünner Schichten ist dadurch gekennzeichnet, daß mittels einer Mikrothermopresse ein etwa 1 mm3 großes Stück Probenmaterial auf einem üblichen Ob­ jektträger, mit Deckglas bedeckt, zwischen 2 Thermoblöcken gepreßt und durch zugeführte Hitze und Druck zum Fließen gebracht wird. Das Material wird durch die besondere Konstruktion der Presse zu einer gleichmäßigen ultradünnen Schicht ausgebreitet. Das Präparat ist damit fertig.1. The new method for producing microscopically thin layers is characterized in that a about 1 mm 3 large piece of sample material on a conventional slide, covered with cover glass, pressed between 2 thermoblocks and brought to flow by heat and pressure supplied by means of a microthermopress . The special construction of the press spreads the material into a uniform, ultra-thin layer. The preparation is finished.
  • 2. Zur Konstruktion der Mikrothermopresse
    Die üblichen Konstruktionsprinzipien bei Pressen mit 2 gegenläufi­ gen Backen sind in verschiedenen Versionen bekannt.
    Die Konstruktion der Mikrothermopresse ist dadurch gekennzeichnet, daß eine Basisbacke als Fundament fixiert ist. Die Druckkraft des gegenläufig wirkenden Stempels wird mittels einer Stahlkugel auf die bewegliche Backe übertragen. Dadurch nivelliert sich diese wäh­ rend des Preßvorganges über dem Schmelzgut planparallel ein und er­ laubt die Pressung einer gleichmäßig ultradünnen Schicht bei Einsatz von geringem technischem Aufwand.
    Diese Präparationstechnik ist besonders geeignet für Phasenkontrast- und Polarisationsverfahren. Geprüft wurden diese nach obigem Ver­ fahren hergestellten Präparate mit dem Phasenkontrastverfahren nach Heine und der Polarisationseinrichtung der Firma Leitz.    2. On the construction of the microtherm press
    The usual design principles for presses with 2 opposing jaws are known in different versions.
    The construction of the microthermal press is characterized in that a base jaw is fixed as a foundation. The pressure force of the counteracting punch is transferred to the movable jaw by means of a steel ball. As a result, this leveled during the pressing process over the melting material in a plane-parallel manner and it allows the pressing of a uniformly ultra-thin layer with little technical effort.
    This preparation technique is particularly suitable for phase contrast and polarization processes. These preparations manufactured according to the above procedure were tested using the phase contrast method according to Heine and the polarizing device from Leitz.

BezugszeichenlisteReference list

 1 Objektträger
 2 Deckglas
 3 Probenmaterial
 4 Thermoblöcke
 5 elektrische Heizkörper
 6 Einschübe für Thermofühler
 7 Thermoisolatoren
 8 Druckmesser
 9 Preßplatte
10 Stahlkugel
11 Preßstempel
12 Justierfedern 1 slide
2 coverslip
3 sample material
4 thermoblocks
5 electric radiators
6 slots for thermal sensors
7 thermal insulators
8 pressure gauges
9 press plate
10 steel ball
11 ram
12 adjustment springs

Claims (2)

1. Herstellung mikroskopisch dünner Schichten mittels einer Mikrothermopresse durch Druck und Hitze.1. Production of microscopic layers using a Microthermal press due to pressure and heat. 2. Kraftübertragung mittels einer Stahlkugel auf eine frei be­ wegliche Backe.2. Power transmission by means of a steel ball on a free be mobile cheek.
DE19924200224 1992-01-08 1992-01-08 Micro-heating press mfr. of very thin polymer layers - uses ball and freely movable plate to press sample in slide plates between heated blocks Withdrawn DE4200224A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924200224 DE4200224A1 (en) 1992-01-08 1992-01-08 Micro-heating press mfr. of very thin polymer layers - uses ball and freely movable plate to press sample in slide plates between heated blocks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924200224 DE4200224A1 (en) 1992-01-08 1992-01-08 Micro-heating press mfr. of very thin polymer layers - uses ball and freely movable plate to press sample in slide plates between heated blocks

Publications (1)

Publication Number Publication Date
DE4200224A1 true DE4200224A1 (en) 1993-07-15

Family

ID=6449172

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19924200224 Withdrawn DE4200224A1 (en) 1992-01-08 1992-01-08 Micro-heating press mfr. of very thin polymer layers - uses ball and freely movable plate to press sample in slide plates between heated blocks

Country Status (1)

Country Link
DE (1) DE4200224A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035701A1 (en) * 1996-03-22 1997-10-02 Fico B.V. Press for encapsulating electronic components and methods for use of the press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035701A1 (en) * 1996-03-22 1997-10-02 Fico B.V. Press for encapsulating electronic components and methods for use of the press
US6165405A (en) * 1996-03-22 2000-12-26 Fico B.V. Press for encapsulating electronic components and methods for use of the press

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Legal Events

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8130 Withdrawal