{"id":3791,"date":"2021-11-29T16:11:06","date_gmt":"2021-11-29T16:11:06","guid":{"rendered":"https:\/\/tribologie-mannheim.de\/equipment\/sft\/"},"modified":"2022-12-09T09:33:29","modified_gmt":"2022-12-09T09:33:29","slug":"sft","status":"publish","type":"page","link":"https:\/\/tribologie-mannheim.de\/en\/equipment\/sft\/","title":{"rendered":"SFT"},"content":{"rendered":"\t\t
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The Static-Friction Tribometer<\/h2>\n

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The Static-Friction-Tribometer was developed especially for the investigation of static friction processes.<\/p>\n

In contrast to the usual tribometers, the torque is applied extremely slowly via a soft spring torsion wire, so that the static friction can be determined with high accuracy. The twisting of the wire is indicated optically by means of a laser beam deflected by a mirror attached to the spring wire. The frictional torque is recorded digitally.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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The specimen arrangement ball on three platelets allows the examination of almost any material. This can be done dry or lubricated.<\/p>\n

For plastics, specimens are usually prepared from standard tensile bars. For steel counterbodies, the typical Bosch vane cell plates are used.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Test bench parameters<\/strong><\/span><\/td>\n <\/td>\n <\/td>\n<\/tr>\n
Sliding speed<\/td>\n0.1 to 100 mm\/min and 1 to 12,000 mm\/min (2 motors)<\/td>\n <\/td>\n<\/tr>\n
Load<\/td>\n5 to 100 Newton<\/td>\n <\/td>\n<\/tr>\n
Temperature<\/td>\n-10 \u00b0C to 80 \u00b0C<\/td>\n <\/td>\n<\/tr>\n
Measurement parameters<\/td>\nFrictional force, sliding speed, normal force<\/td>\n <\/td>\n<\/tr>\n
Movement type\/shape<\/td>\nGlide (continuous)<\/td>\n <\/td>\n<\/tr>\n
Friction conditions<\/td>\nDry friction, mixed friction<\/td>\n <\/td>\n<\/tr>\n
Contact geometry<\/td>\n3-point touch (ball \/ 3 tiles)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Other tests<\/h4>\n