Coating standard: Hg / T 2244-91 machine primer

Core tips: 1 subject content and scope of application This standard specifies the technical requirements, test methods, acceptance rules, marks, packaging, storage and transportation of machine primer This standard is applicable to all kinds of coating for machine tool surface priming 2 reference standards GB 1726 determination of coating covering power GB 1727 general preparation of paint film GB 1728 test method for drying time of paint film and putty film GB 1764 determination of film thickness GB 31 Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Home of coatings: 1 subject content and scope of application this standard specifies the technical requirements, test methods, acceptance rules, signs, packaging, storage and transportation of machine primer This standard is applicable to all kinds of coating for machine tool surface priming 2 reference standard GB 1726 determination of coating covering power GB 1727 general preparation method of film GB 1728 determination of drying time of film and putty GB 1764 determination of film thickness GB 3186 sampling of paint products GB 5208 determination of flash point of paint rapid balance method GB 6739 pencil determination of film hardness GB 6751 determination of volatile and non-volatile matter of paints and varnishes GB 6751 6753.1 determination of fineness of paint grinding GB 6753.2 test for drying of paint surface - small glass ball method GB 6753.3 test method for storage stability of paint GB 6753.4 determination of paint outflow time ISO Flow cup method GB 9271 standard test panel for paints and varnishes GB 9274 determination of resistance of paints and varnishes to liquid media GB 9278 temperature and humidity for state adjustment and test of paint samples GB 9278 9286 paints and varnishes - cross cut test of paint film - visual color comparison of paints and varnishes (GB 9750) - Product Classification - machine primer (GB 9761): type I, perchloroethylene primer; type II, epoxy ester primer 4 Technical requirements: the products shall meet the technical requirements in the table below Project index type I type II paint film color and appearance outflow time (cup 6), s is not less than fineness, μ m is not more than nonvolatile content,% is not less than dry time is not more than surface dry, min dry, H covering power, g / M is not more than grid test (1mm), grade pencil hardness salt water resistance (3% NaCl) 24h 48h storage stability skinning, grade sedimentation, grade Flash point, ℃ is not lower than the color uncertainty, the paint film is flat 40 80 45 101 400 B without blistering and falling off, and slight whitening is allowed - 6 - color uncertainty, the paint film is flat 30 60 45-24 400 HB without blistering and falling off, and slight whitening is allowed 10 66 23 5 test method 5.1 general conditions of test 5.1.1 sampling shall be conducted according to the provisions of GB 3186 5.1.2 the test temperature and humidity shall be 23 ± 2 ℃ and 50 ± 5% of the relative humidity in GB 9278 5.1.3 generally, the paint film shall be prepared in accordance with the provisions of GB 1727 5.1.4 the film thickness shall be in accordance with GB 1764 5.2 the outflow time shall be measured according to the provisions of GB 6753.4 5.3 the fineness shall be determined according to gb6753.1 5.4 nonvolatile content shall be determined according to GB 6751 5.5 the color and appearance of the paint film shall be evaluated according to the provisions of GB 9761 5.6 the drying schedule shall be in accordance with GB 6753.2, and the actual drying shall be in accordance with GB 1728 5.7 the covering force shall be measured according to the provisions of GB 1726 5.8 the cross cut test shall be conducted in accordance with the provisions of GB 9286 5.9 pencil hardness shall be determined according to GB 6739 5.10 salt water resistance shall be tested in accordance with GB 9274 5.11 the storage stability shall be tested according to GB 6753.3 5.12 the flash point shall be determined according to GB 5208 6 Inspection rule 6.1 All technical index items listed in this standard are type inspection items Under normal production, type inspection shall be carried out every half a year Outflow time, fineness, nonvolatile content, film color and appearance, drying time, covering power, grid test, pencil hardness and salt water resistance are factory inspection items 6.2 the product shall be inspected by the inspection department of the manufacturer according to the provisions of this standard All factory products shall meet the technical requirements of this standard The product shall be provided with a certificate of conformity If necessary, use instructions and precautions shall be attached 6.3 the receiving department has the right to inspect the products according to the provisions of this standard If the quality does not meet the technical indicators of this standard, both the supplier and the Demander shall re sample the products according to GB 3186 for re inspection If the quality still does not meet the technical indicators of this standard, the products are unqualified, and the receiving department has the right to return the products 6.4 the product is sampled according to GB 3186, and the sample is divided into two parts, one is sealed for future reference and the other is used as the sample for inspection 6.5 when the product leaves the factory, the package, quantity and mark shall be checked In case of any damage or leakage of the package, discrepancy in the quantity, and non-compliance of the mark, etc., it shall be handled in a timely manner 6.6 in case of any dispute on product quality between the supplier and the demander, the product quality supervision and inspection institution shall conduct arbitration inspection 7 mark shall be in accordance with GB 9750 8 Packaging, storage and transportation 8.1 products shall be stored in clean, dry and sealed containers, and the device shall not be more than 95% of the volume The product shall be kept ventilated and dry during storage to prevent direct sunlight, and shall be isolated from the fire source When the temperature is too high in summer, it shall be cooled 8.2 the product shall be protected from rain and sunlight during transportation, and shall comply with the relevant regulations of the transportation department 8.3 the effective storage period of the product is one year from the date of production under the storage and transportation conditions of 8.1 and 8.2 9 safety and health regulations 9.1 this product contains benzene, esters and other organic solvents It belongs to flammable liquid and has certain toxicity 9.2 pay attention to ventilation, fire prevention, anti-static, anti poisoning and other safety measures at the construction site, and observe the safety operation procedures and relevant regulations of coating operation Appendix a construction reference (reference part) A1 metal surface can be treated by grinding sand blasting, pickling, phosphating and other methods Remove rust and grease to make metal surface clean A2 can be applied by spraying and brushing During A3 construction, the viscosity of type I paint can be adjusted by x-3 perchloroethylene diluent When the relative humidity is more than 70%, a proper amount of F-2 perchloroethylene moisture-proof agent should be added to prevent the paint film from turning white A4 II paint can be diluted with epoxy paint diluent A5 can be used together with machine tool finish A6 beyond the storage period can be inspected according to the indicators specified in this standard If the results meet the requirements, it can still be used ————————- additional note: this standard is proposed by the science and Technology Department of the Ministry of chemical industry of the people's Republic of China This standard is under the jurisdiction of the National Technical Committee for standardization of coatings and pigments This standard is drafted by Northwest paint factory The main drafters of this standard are Li Jianwei, Shen zonglan, Lu Fuhua, Li Xiaolan and Yin Fangcheng Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,