The traditional
swimming pool waterproofing mainly uses three kinds of tiles, coils and
coatings. Laying ceramic tiles, where there is water is relatively slippery;
some places fall off or crack, which has great safety hazards; between the
gaps, it is easy to breed bacteria. The coil material is fast in construction
and has good waterproof effect, but it needs to be cut when paving, especially
in the place where there are many detailed nodes, it is easy to leave troubles
and easy to leave hidden dangers. The concrete pool
sealer has simple construction, and forms a continuous waterproof whole
after film formation, and has good construction and waterproof effects on
various corners and facades.
However, the
problems encountered in the use of ordinary pool
sealant: outdoor use is easy to change color, the effect of disinfectant
water (chemical medium) in water will accelerate the discoloration and peeling
speed of the coating; the anti-wet and anti-slip effect is not ideal, and the
surface anti-wet effect is also added by adding quartz. Sand increases the
surface roughness and is easy to injure and has unsafe factors.
So, what
conditions must be met for the water park and swimming
pool sealer system?
1. The coating
should not peel off, otherwise it will affect the aesthetic and circulating
water system.
2. The coating
must be environmentally friendly and meet the drinking water level.
3, the coating
can withstand sun exposure.
4, the coating
requirements are beautiful.
5, the coating
should have a certain anti-slip function.
6, the entire
water park pool should have waterproof and anti-seepage function.
Advantages of
UMS-AUPT Polyurea Waterproof Non-slip Elastic Coating System:
1) UMS-AUPT
brushed polyurea waterproof anti-slip coating is a high-strength elastic
waterproof material with high water resistance, anti-skid and walking comfort;
2) Waterproof,
anti-corrosion and decorative integrated design. The concrete
Pool Sealant is excellent in aging resistance, the coating is full, the
decoration is beautiful, and the color does not change over time;
3) Good
adhesion, long-term use, no foaming, no falling off, no empty drum;
4) High safety
factor and efficient anti-slip performance;
5) Excellent
mechanical properties, tensile strength above 300%, tensile strength above
20Mpa, to ensure that the coating resists cracking of concrete;
6) Excellent low
temperature flexibility, ensuring long-term use without cracking and falling
off in the environment of -40 ° C ~ -60 ° C;
7)
Anti-corrosion performance is very prominent, can withstand the erosion of
water, acid, alkali, salt, oil and other media;
8) Simple
construction, roll coating, recoating or repairing construction is simple, no
special treatment is required.
Polyurea
is a combination of waterproof, anti-corrosive, anti-slip and decorative, which
will definitely lead the application trend of water park and swimming pool
painting system. Aquariums, aquariums, fish ponds and other water facilities
also use polyurea coatings as the best choice for sealing and waterproofing.
Concrete Pool Sealant,Swimming Pool Sealer,Concrete Pool Sealer,Pool Sealant UMS New Materials Industry Co.,LTD , https://www.ums-factory.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>GB/T 272 1993 Rolling bearing code method GB/T 272 1993 rolling bearing code method
The rolling bearing code is a product symbol that uses letters and numbers to indicate the layout, dimensions, public service level, skill function and other characteristics of the rolling bearing. /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
1 Subject content and scope of application This specification rules the preparation method of rolling bearing and its sub-components (hereinafter referred to as bearing) code.
This specification applies to bearings that are commonly used.
2 Citation specification
GB/T273.1 Rolling bearing tapered roller bearing shape scale plan
GB/T273.2 Rolling bearing thrust bearing profile plan
GBiT273.3 Rolling bearing radial bearing shape scale plan
GB/T276 rolling bearing deep groove ball bearing shape scale
GB/T281 rolling bearing self-aligning ball bearing shape scale
GB/T283 Rolling bearing cylindrical roller bearing shape scale
GB/T285 rolling bearing double row cylindrical roller bearing outer dimensions
GB/T288 rolling bearing spherical roller bearing shape scale
GB/T290 rolling bearing stamping outer ring needle roller bearing dimensions
GB/T292 radial bearing angular contact ball bearing shape scale
GB/T294 radial bearing four-point touch ball bearing shape scale
GB/T296 rolling bearing double row angular touch ball bearing shape scale
GB/T297 rolling bearing tapered roller bearing shape scale
GB/T301 rolling bearing flat bottom thrust ball bearing shape scale
GB/T3882 outer spherical ball bearing and partial pain sleeve shape scale
GB/T4221 Rolling bearing miniature radial ball bearing diameter series 7
GB/T4605 Needle roller bearing thrust needle roller and cage assembly, thrust washer
GB/T4663 rolling bearing thrust cylindrical roller bearing shape scale
GB/T5801 needle roller bearings light and medium series scale and public service
GB/T5846 needle roller bearings radial needle and cage assemblies
GB/T5859 rolling bearing thrust spherical roller bearing shape scale
JB/T2974 rolling bearing code method to make up the rules
3 bearing code formation bearing code consists of the root code, pre-code and post code; its placement is shown below.
3.1 The basic code of the fundamental code indicates the basic type, layout and scale of the bearing; it is the base of the bearing code.
3.1.1 Rolling bearing (needle bearing out) The external code bearing size scale conforms to the external dimensions of GB/T273.1, GB/T 273.2, GB/T273.3, GB/T 3882; The fundamental code consists of the bearing type code, the scale series code, and the inner diameter code.
The type code in Table 1 is indicated by Arabic numerals (hereinafter referred to as numbers) or uppercase Latin letters (hereinafter referred to as letters); the scale series code and the inner diameter code are indicated by numbers.
Example: 6204 6 type code; 2 scale series (02) code; 04 inner diameter code
N2210N type code; 22 scale series code; 10 inner diameter code
3.1.1.1 Type code bearing type code is indicated by numbers or letters as shown in Table 2.
Note: Adding letters or numbers after or before the code in the table indicates a different layout in this type of bearing.
3.1.1.2 Scale series code series series code is composed of bearing width (high) series code and diameter series code.
The series of radial bearing and thrust bearing scales are shown in Table 3.
3.1.1.3 Commonly used bearing types, scale series codes and combination codes consisting of bearing type codes and scale series codes are shown in Table 4.
3.1.1.4 The internal diameter code indicating the nominal inner diameter of the bearing is shown in Table 5.
3.1.2 Needle bearing bearing code
3.1.3 The code of the root code is used when the bearing type code is indicated by a letter; when it is listed, it should be half a Chinese character distance from the number indicating the bearing code series code, the inner diameter code or the device cooperation feature scale. :NJ230, AXK0821.
3.2 Pre- and post-code pre- and post-codes are the replacement codes of the bearing when the layout shape, scale, public service, skill requirements, etc. are changed; the code is added around its root code.
3.2.1 Preamble code The preamble code is indicated by a letter. The code name and its meaning are shown in Table 9.
3.2.2 Post code The post code is indicated by a letter (or a number).
3.2.2.1 Rules for the preparation of post code
a. The post code is placed on the right side of the root code and is half a Chinese character from the root code (the symbols are "one" and "/"). When there are many changes, there are multiple sets of post ten °C; according to Table 8 Listed from left to right,
b. Change to the future content of 4 groups (including 4 groups); then use "/" before the code name to separate from the previous code:
Example: 6205 2Z/P6 22308/P63
c. The changes are the two groups after the fourth group; the numbers or characters in the former group and the back group code indicate that the meaning can be mixed; the half-space between the two codes is half a Chinese character. Example: 6208/P63V1
3.2.2.2 Post code and meaning
a. Internal layout code according to Table 10
b. Sealing, dustproof and external shape change code and meaning are shown in Table 11.
C. The code of the cage layout, data modification and bearing data changes are in accordance with the rules of JB/T 2974.
d. Public service grade code according to Table 12
e. The clearance code is shown in Table 13.
f. Equipment code according to Table 14
g. other
4 Special indication method
4.1 The tapered roller bearing conforms to the scale series of GB/T273.1 Appendix A in the bearing dimension; the bearing code is in accordance with the rules of Appendix A (see the) of this code.
4.2 Non-standard bearing, inch bearing bearing layout, the size of the bearing does not conform to the standard rules and the code of the inch-size bearing; according to the rules of the competent authority of the manufacturer.
5 Compilation rules Generally, the bearing should be used to prepare the bearing code according to the rules and regulations of this code. When the subscriber has special requirements for the code, it can not use the rules of this code after negotiating with the manufacturer.
Recommend to friends comments close window Bearing related knowledge The application of high-speed "fine linear bearing" device for bearing steel ring is the four key points for correct force application when assembling and disassembling fag bearings
How to do FAG bearing failure due to Raymond mill bearing wear
This article links to http://
Please indicate the bearing network http://
Previous:TIMKEN bearing application analysis of the next section: the strategy of "IKO bearing presents operational problems"
GB/T 272 1993 rolling bearing code method
Source: China Bearing Network Time: 2013-12-11