Machine for testing thermal resistance of plastic materials, comprising a tank configured, in use, to be filled for example with a heat-transfer fluid; a heating coil for heating the heat-transfer fluid; a temperature sensor generating a temperature signal of the heat-transfer fluid; and a control unit calculating a degradation index of the heat-transfer fluid on the basis of the temperature signal. In particular, the degradation index is calculated by determining the temperature range associated with the temperature signal, updating the corresponding partial heating time, and calculating the weighted sum of the partial heating times previously saved in memory and pertaining to different temperature ranges. Upon reaching one or more thresholds, signals are generated which indicate the need to replace the heat-transfer fluid.

A sealing device for insertion between a first and a second bearing part. The device including a rotating first shield, a stationary second shield, and an elastomeric sealing element having a first and a second sealing lip. The first shield includes a peripheral section having a first and a second axially extending sleeve portion connected by a first radially extending flange portion. The second shield including a support section for the lips, having an intermediate frustoconical portion that connects a second flange portion of the peripheral section to a mounting section of the second shield. The intermediate portion is positioned axially at a step formed by the first flange portion and by the first sleeve portion. The mounting section is arranged partially inside the second sleeve portion to form an axially directed labyrinth seal that is in metal-to-metal contact with the second bearing.

Machine and method for hot testing test pieces made of a thermoplastic polymer, in which the test pieces are immersed in a tank full of a heat transfer liquid which is heated; a fan generates, immediately above the tank, an air flow to carry away volatile substances emitted by the tank and the air flow is made to pass through a filtering cartridge housed removably inside a first chamber delimited by a casing, which is provided with an inlet opening, that faces towards the tank and is arranged flush with or immediately above an upper perimetral edge of the tank; the air flow is made to pass sequentially through at least three filtering elements, which are arranged hydraulically in series, including: a pre-filter; at least one activated carbon filter; and a HEPA filter; an hour counter signals when the time has come to replace the filtering cartridge.

Disclosed is a peel strength measurement apparatus using an electromagnet, the peel strength measurement apparatus including a test piece fixing unit configured to fix a test piece including at least two layers, a magnetic material attached to at least one surface of the test piece, an electromagnet configured to apply magnetic force to the magnetic material, a power supply unit configured to supply electric power to the electromagnet such that the electromagnet can generate a magnetic field, and a current controller configured to control the supply of electric power from the power supply unit to the electromagnet.

Disclosed is a brake hose endurance testing apparatus, including: a plurality of first fitting members inserted at one end of the brake hose into a plurality of first fixing brackets; a first mounting block attached to the plurality of first fixing brackets and configured to move up and down; a vertical driving unit configured to drive the first mounting block up and down; a second mounting block attached to a plurality of second fitting members inserted at the opposite end of the brake hose into a plurality of second fixing brackets or attached and fixed to moving brackets; and a horizontal driving unit configured to drive the moving brackets to move left and right, wherein the first and second fitting members of the brake hose are universal fitting members laid out to reflect the interference characteristics between the brake hose and peripheral components.

Disclosed is a peel strength measurement apparatus using an electromagnet, the peel strength measurement apparatus including a test piece fixing unit configured to fix a test piece including at least two layers, a magnetic material attached to at least one surface of the test piece, an electromagnet configured to apply magnetic force to the magnetic material, a power supply unit configured to supply electric power to the electromagnet such that the electromagnet can generate a magnetic field, and a current controller configured to control the supply of electric power from the power supply unit to the electromagnet.

A method for the analysis of surface measurements, in particular scratch tests, wear tests or profilometric measurements, wherein a graph with displayable curves in the form of measuring curves of already analyzed results with an X-axis as a coordinate axis along a measuring path is laid over a live image or subsequently over a stored image of the measuring section such that the X-coordinates in the image coincide with the X-coordinates of the curves.

Disclosed is a brake hose endurance testing apparatus, including: a plurality of first fitting members inserted at one end of the brake hose into a plurality of first fixing brackets; a first mounting block attached to the plurality of first fixing brackets and configured to move up and down; a vertical driving unit configured to drive the first mounting block up and down; a second mounting block attached to a plurality of second fitting members inserted at the opposite end of the brake hose into a plurality of second fixing brackets or attached and fixed to moving brackets; and a horizontal driving unit configured to drive the moving brackets to move left and right, wherein the first and second fitting members of the brake hose are universal fitting members laid out to reflect the interference characteristics between the brake hose and peripheral components.

Machine for testing thermal resistance of plastic materials, comprising a tank configured, in use, to be filled for example with a heat-transfer fluid; a heating coil for heating the heat-transfer fluid; a temperature sensor generating a temperature signal of the heat-transfer fluid; and a control unit calculating a degradation index of the heat-transfer fluid on the basis of the temperature signal. In particular, the degradation index is calculated by determining the temperature range associated with the temperature signal, updating the corresponding partial heating time, and calculating the weighted sum of the partial heating times previously saved in memory and pertaining to different temperature ranges. Upon reaching one or more thresholds, signals are generated which indicate the need to replace the heat-transfer fluid.

Machine and method for hot testing test pieces made of a thermoplastic polymer, in which the test pieces are immersed in a tank full of a heat transfer liquid which is heated; a fan generates, immediately above the tank, an air flow to carry away volatile substances emitted by the tank and the air flow is made to pass through a filtering cartridge housed removably inside a first chamber delimited by a casing, which is provided with an inlet opening, that faces towards the tank and is arranged flush with or immediately above an upper perimetral edge of the tank; the air flow is made to pass sequentially through at least three filtering elements, which are arranged hydraulically in series, including: a pre-filter; at least one activated carbon filter; and a HEPA filter; an hour counter signals when the time has come to replace the filtering cartridge.