SOP - OPERATION PROCEDURE FOR HYDRAULIC PRESS (KBr PRESS)

1.0 OBJECTIVE

To lay down a procedure for Operation of Hydraulic Press.

2.0 SCOPE

This sop covers the operation procedure for hydraulic press and is applicable to Quality control department..

3.0 RESPONSIBILITY

Executive.

4.0 ACCOUNTABILITY

Department Head.

5.0 PROCEDURE

5.1 GENERAL CLEANING PROCEDURE

5.1.1 Clean the instrument with a clean dry cloth every day.

5.1.2 Occasionally wet cloth dipped in dilute soap solution may be used.

5.1.3 Precaution to be taken to clean the instrument immediately with dry cloth to remove the moisture.

5.2 OPERATING PROCEDURE

5.2.1 Clean the plunger and Anvil with Solvent to remove Grease.

5.2.2 Assemble the Top and Bottom Guide.

5.2.3 Insert Anvil with polished surface facing upwards in the Top Guide.

5.2.4 Fill evenly 400gm – 500 gm Potassium bromide ( Spectroscopy Grade) and 4 -5mg Sample on the Anvil surface and spread it using Plunger. For best results. Use only Spectroscopic Grade KBr and heat it at 110o in Oven before use.

5.2.5 Insert Plunger facing polished surface down-wards.

5.2.6 Place the small ‘O’ Ring around the Plunger and push it up to the top S.S. Guide.

5.2.7 Place the assembled Die on the cover plate of the Cylinder of the Press. Move the Screw with handle until it touches the Plunger.

5.2.8 Apply Vacuum .

5.2.9 Close the Release Knob by turning clockwise.

5.2.10 Use manual handle to apply pressure.

5.2.11 Required pressure normally is 10 to 15 kg /cm2

5.2.12 Never exceed 15 kg/ cm2 on the die though the Press

5.2.13 Release pressure and vacuum after five minutes.

5.2.14 Dismantle top and Bottom guides and using extractor ring provided apply pressure from the reverse side to remove Pellet.

5.2.15 Clean all traces of KBr press and store the Die in Dessicator.

5.3 PRECAUTIONS

5.3.1 All the parts of the Die should be kept absolutely clean by removing traces of KBr press and Dust.

5.3.2 Use only soft tissue paper moistened with solvent for cleaning.

5.3.3 Do not excess pressure than required on the Die.

5.3.4 Store the Die in dessicator after cleaning thoroughly. The Anvil and Plunger should be kept wrapped in Aluminum Foil and then in the Dessicator. Alternatively the Anvil and Plunger can be kept immersed in Liquid Paraffin.

5.3.5 Use only moisture free dry Spectroscopic Grade Potassium bromide.

5.4 CALIBRATION
5.4.1 Gauge Calibration shall be done through Utility department once a year and after each maintenance job.


6.0 REASON FOR REVIEW:

First time issue.