Chapter VIII Design and Fabrication of Metal Hose Structures
Section 1 Metal Hose Features and Materials
The metal hose is a special packaging container for packaging paste products.
First, the characteristics and uses of metal hose
1. Features
1 has good protection properties on the contents 2 has a beautiful appearance after decorating printing 3 uses flexible metal, through the extrusion 4 hose inner wall coating through the use of different coatings 5 ​​metal flexible packaging lightweight, easy to carry, easy to use There is no "call back" phenomenon after extruding the contents so that the contents of the tube are not easily contaminated
4. Use 1 Packaging Daily Cosmetic Products 2 Packaging Pharmaceuticals 3 Packaging Food Products
Second, the metal hose commonly used materials
Third, the metal hose structure and size
1, the structure of the hose
1 neck 2 cap 4 body. The cavity used to store the contents is generally cylindrical.
4 Tube bottom seals. It is the back cover structure formed after the contents are filled from the bottom of the tank, and the bottom of the tank is flattened and folded several times before pressing the corrugation.
2, metal hose specifications
Section 2 Manufacturing Process of Metal Hose
First, production process and equipment
1, fried slices
1 can significantly reduce the friction coefficient of aluminum metal 2 can maintain good lubrication at high temperature (300), high pressure 3 non-toxic, odorless, its residue does not affect the quality of the hose inside the material 4 easy to use, easy coating uniform 2, red tube
3, Annealing 4, inner coating 5, primer
6, printing 7, cover, packaging
Second, the quality of metal hose
1, the quality of the bad tube
1 The quality of the bad tube, the quality of the shoulder bag, the length of the tube body, the thickness of the tube wall, the outer diameter, and the thread of the tube should all meet the specifications. 2 The hardness of the annealing hose is the hand pressure tube end, and the light and elasticity of the tube wall is complete and smooth. There are no straight and horizontal marks on the inside and outside of the pipe wall, no holes, no hairs, 4 pipe shoulders should be smooth and smooth, no spot 5 threads are clear and smooth, the teeth are correct, the threads are well meshed with the caps, and the cut ends are flat (cracking and curling are not allowed More than 1mm)
6 The end surface of the nozzle is clean and orderly, and there is no aluminum foreign material. The height of the seal should not be greater than 1mm.
7 The tail should be smooth and smooth, no aluminum swarf, no aluminum swarf, no aluminum wire, no infalling 8 shoulders should be clean and bright, the innermost circle is not less than 2mm from the root of the thread
2, the background appearance requirements
1 The bottom ink is printed evenly, smooth, without exposed bottom, no yin and yang surface, no obvious seams, no black lines, and the height of the printed end of the tube tail is not more than 2mm
2 Bottom ink overflow shoulder, no more than 1mm outermost of the shoulder tube
3 The bottom ink should not contaminate the inner wall of the hose. Occasionally, the hose of 22mm or less shall not exceed 8mm. The hose of 25mm or more shall not be higher than 10mm of the hose end.
4 Back-ink drying is not as smooth as smooth, uniform white, no blistering, no yellowing, no ink removal, no debris
3, color appearance requirements
1 Handwriting, pattern is clear and accurate, color is in line with the standard color 2 Color tube seam width is not more than 2mm
3 color pattern can not offset the draft 1.5mm
4 The asymmetrical distance between the two sides of the pattern and the text is not more than 3mm, and the offset of the trapeze is not more than 1.5mm.
5 pairs of light color standard length of 12mm, width of 3mm printing position should be higher than the end of the tube 12 ~ 14mm, color standard printing with black ink should be clearly clear
4, the appearance of finished hose requirements
Third, quality inspection
1, specification size detection
2, pipe wall thickness inspection, pipe thread inspection
4, trachoma and cracks
5, hardness test
6, pattern, color inspection
7, deinking inspection
Fourth, the development trend of the hose
During the use and development of the hose, the following must be considered:
1, hose material is harmless to human body
2, should save energy, save natural resources
3, does not pollute the environment
4, low cost