HEAT RESISTANT NON-STICK.docVIP

HEAT RESISTANT NON-STICK COATING (PTFE BASE) PURPOSE2 2REFERENCEDOCUMENTS2 3 GENERAL CONDITIONS OF USE2 3.1 DEEP FRYER BOWLS OR TANKS2 3.2 CONTACT GRILL PLATES 2 3.3 COFFEE MAKER BOILERS2 4 AESTEHETIC CHARACTERISTICS 2 5PRETREATMENT3 5.1 SAND-BLASTING 3 5.2 CHEMICAL PICKLING3 5.2.1 Roughness3 5.2.2 Surface cleanness3 6 THICKNESS3 7 MECHANICAL PHYSICAL CHARACTERISTICS4 7.1 ADHERENCE TO THE BASE 4 7.2 BLISTERING TEST5 7.3 NON-STICK TEST5 7.4 DURABILITY OF THE COATING5 8 SUPPLY GUARANTEE AND QUALITY CHECK 5 9 STANDARD TESTS5 1 PURPOSE To define the requirements that the non-stick coating applied on manufactured goods supplied to De’Longhi must have in order to guarantee the quality and methods of supply. 2 REFERENCE DOCUMENTS Reference is made to the following documents for the specifications and methods for quality assessment: ??Technical drawing in force (materials, size, etc.). See Ref. 1 3 GENERAL CONDITIONS OF USE The subject-matter of this specification are deep-fryer bowls or tanks, contact grill plates coated with PTFE-based coating material and coffee maker boilers. 3.1 DEEP FRYER BOWLS OR TANKS The coating is applied on the inside of the aluminium bowl or tank and has a non-stick and aesthetic function. The bowl or tank forms the container of a household deep fryer for frying meat, vegetables, etc. in seed oil and vegetable or animal fats. The working temperature of the oil is 190 °C with peaks of 210 °C. In the event of malfunction, a special protective device stops the appliance when the oil reaches the maximum temperature of 295°C. 3.2 CONTACT GRILL PLATES The coating is applied on the surface of the rolled, pressed aluminium plates. The plates form the surfaces of the household contact grills for cooking food. The working temperature of the plates is 250 ??270 °C with an initial peak of 320 °C. 3.3 COFFEE MAKER BOILERS The coating is applied on the inside of the die-cast aluminium boiler; it has a protective function against oxidation in respect of the