HG 2176-1991 rickshaw tire mold HG2176-1991 standard download decompression password: www.bzxz.net

Chemical Industry Standard of the People's Republic of China
HG 2176-91
Hydrake Tire Mould
Published on December 23, 1991
Ministry of Chemical Industry of the People's Republic of China
Implementation on May 1, 1992
Chemical Industry Standard of the People's Republic of China
Hydrake Tire Mould
Subject Content and Scope of Application
HG2176-91
This standard specifies the cavity design and outer edge dimensions, technical requirements, inspection rules, marking, packaging, transportation and storage requirements of yak tire moulds.
This standard applies to the outer tube, inner tube and airbag molds of pneumatic tires for bicycles, tricycles, carts and similar types of vehicles. Motorcycle tire molds can refer to this standard for implementation. This standard does not apply to tire molds that are not inflated and not made of rubber materials or diaphragm-shaped and vulcanized. 2 Reference standards
Packaging, storage and transportation pictorial symbols
2 Cycling tires
GB1702
GB1703 Cycling inner tubes
GB1800
General theory of tolerances and fits, standard tolerances and basic deviations GB6 388 Shipping and receiving marks for transport packaging
HG5-1543 General technical conditions for rubber machinery packaging 3 Cavity design and outer edge dimensions of the mold
3.1 The cavity design of the mold must comply with the requirements of GB1702 and GB1703 for the dimensions of new tires. 3.2 The outer edge dimensions of the mold must match the corresponding inner edge dimensions and tolerances of the hot plate (steam chamber) of the vulcanizer. 4 Technical requirements
4.1 The mold should comply with the provisions of this standard and be manufactured in accordance with the drawings and technical documents approved in the prescribed procedures. 4.2 The main material of the mold must be resistant to corrosion. The tensile strength shall not be less than 460MPa.4.3 The limit deviation of the dimensions of each part of the mold cavity shall comply with the provisions of Table 1. Approved by the Ministry of Chemical Industry of the People's Republic of China in 19913
Implementation on 1992-05-01
Project name
Single-sided section curve gap
Outer cavity diameter
Mold misalignment of upper and lower mold cavity diameters
Mold misalignment of butt-jointed pattern
Number of misalignments
Mold misalignment of non-butt-jointed pattern
Number of misalignments
Difference and deviation between butt pattern pitches Number of engravings
Number average
Pattern depth
Pattern length and depth
HG2176-91
4.4Mold joint area (evenly colored by grinding the parting surface) is greater than 70% for outer tire mold, greater than 80% for inner tire mold, and greater than 70% for airbag mold.
4.5Conical surface joint area (evenly colored by grinding the conical surface). The outer tire mold, inner tire mold and airbag mold are all greater than 70%4.6The width of the die joint surface is 6~10mm.
4.7The deviation value of the inclination of the center line of the valve mouth hole is less than 5°4.8The limit deviation of the main dimensions of the outer edge of the mold shall comply with the provisions of Table 2. Table 2
Outer diameter of mold
Total height of moldbzxz.net
Parallelism of mold after mold closing
Flatness of upper and lower surfaces of mold
4.9 Font: Trademark requirements
Deviation value
The fonts and trademarks (including Chinese and English) engraved on the mold cavity should be processed according to the requirements of the drawings and should comply with the provisions of GB1702 and GB1703. The fonts should be neat, uniform, clear and beautiful. 4.10 Surface roughness
HG2176-91
4.10.1 The surface roughness R of the upper and lower mold cones shall not be greater than 3.2μm, 4.10.2 Cavity surface roughness R, parameter value shall not be greater than: 1.6μum for the outer tire sidewall and the airbag cavity; 0.8urm for the inner tire cavity,
4.10.3 Surface roughness R of the pattern part, parameter value shall not be greater than 3.2μm, 4.10.4 Surface roughness R of the upper and lower planes of the mold shall not be greater than 6.3um, 4.10.5 Surface roughness R of the die joint surface, parameter value shall not be greater than 1.6um. 4.10.6 Surface roughness R of other mating surfaces, parameter value shall not be greater than 6.3um.5 Inspection rules||tt ||5.1 Each set of molds must be inspected according to the requirements of this standard before leaving the factory, and detailed inspection records must be kept. The inspection tools and inspection methods shall be in accordance with the provisions of Appendix A.
5.2 The cross-sectional curve of the mold cavity shall be inspected with a standard sample manufactured by wire cutting. The accuracy of the standard sample shall comply with the provisions of IT7 level in GB1800.
5.3 After passing the inspection, the mold must be coated with anti-rust oil in the cavity in time. 5.4 Each set of molds can only be shipped after passing the inspection according to this standard. When leaving the factory, it must be accompanied by a product certificate. 6 Marking, packaging, transportation and storage
6.1 Marking|| tt||Each set of molds shall be printed with marks on the outer surface near the gas plate, including: a.
Manufacturer name or trademark;
Model (preparation method shall be in accordance with the provisions of Appendix B); Date of manufacture;
d. Mark of the upper and lower mold joint reference line;
On the upper and lower molds of each set of molds, the same factory number shall be printed; e
f. Other marks can be printed according to user requirements
6.2Mold packaging shall comply with the provisions of HG5-1543, 6.3Mold packaging and transportation marks shall comply with the provisions of GB191 and GB6388. 6.4Molds shall be stored in a dry warehouse without acid and alkaline corrosion and properly kept. 7Others
Under the condition that the user complies with the relevant requirements for transportation, storage, installation and use, and unpacks and accepts the mold within one month after arrival, the manufacturer shall bear the one-year warranty period of the mold from the date of arrival. HG2176-91
Appendix A
Inspection tools and inspection methods for bicycle tire molds (supplement)
The outer diameter and total height of the mold are measured with a vernier caliper with an accuracy of not less than 0.05mm. A2 The outer diameter, inner diameter and contact diameter of the cavity are measured with a template card or vernier caliper that meets IT6 grade accuracy. The pattern depth, length and width are measured with a vernier caliper with an accuracy of not less than 0.02mm. A3
A4 The pattern spacing and friction line length are measured with a divider and a vernier caliper with an accuracy of not less than 0.02mm. A5 The cavity section Curve clearance, use a template and feeler gauge that meet IT7 level accuracy to measure the width and depth of other decorative lines, use a template and vernier caliper to measure, A6
The surface roughness of each part of the mold is determined by comparison with the surface roughness standard sample block, Appendix B
How to compile the model of the rickshaw tire mold
(Supplement)
B1 Model composition
B1.1 The model of the rickshaw tire mold consists of a category code and a specification mark, B1.2 The category code uses uppercase printed Chinese pinyin letters and is specified to be represented by W, N, Q (outer tire: inner tube, airbag) respectively. The specification mark uses the current mark of rickshaw tires, B1.3 Model Example
W-37-590
Specification Code
Category Code: (Outer Tire)
W-—28×1
Specification Code
Category Code (Outer Tire)
-37-590
Specification Code
Category Code (Inner Tube)
Specification Code
Category Code (Air Bag)
HG5-91
Appendix C
Charge of Part Names of Outer Tire, Inner Tube and Air Bag Molds for Cycling Vehicles (Reference)
C 1. Cycle outer tire mold (see Figure C1):
3D surface combination
Cavity section curve
-Mold outer diameter: H-Mold total thickness; D-Cavity outer diameter:
Joining true diameter:
-Pattern depth;
-Mold mouth joint surface width;
B-Cavity section width
C2. Cycle inner tire mold true (see Figure C2):
Conical surface combination
HG2176-91
Mold winning section curve
-Mold outer diameter; H-Mold total thickness; D. a-outer diameter of cavity; b-width of die joint surface
d-inner diameter of cavity;
C3 bicycle tire airbag mold (see Figure C3): conical joint surface
HG217691
Cavity section curve
D-outer diameter of mold; H-total thickness of mold; D-outer diameter of cavity; d-inner diameter of cavity;
Width of die joint surface;
B-Cavity section width
Additional remarks:
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 Beijing Rubber Industry Research and Design Institute of the Ministry of Chemical Industry. This standard is drafted by the Guangzhou Rubber Industry Products Research Institute. The main drafters of this standard are Yang Jiazhong, Wang Tongchun, Qin Jincan, Zheng Huanxin and Qian Qingming. People's Republic of China
Chemical Industry Standard
Hydrangea Tire Mould
HG2176-91
Editor: Chemical Industry Standard Editorial Department
(Institute of Standardization, Ministry of Chemical Industry)
Postal Code: 100013
Printing: Institute of Standardization, Ministry of Chemical Industry
Copyright: Exclusive Reproduction
Format: 880×12301/16 Printing Sheet% Number of Words: 14000 First Edition: November 1992 First Printing: November 1992 Number of Prints: 1-500
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