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Debate on the authenticity of the bearing - look and feel
Source: China Bearing Network Time: 2017-09-20
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"When you want to hear and cut" four processes; to useful to distinguish the authenticity of the bearing.
"Wang" is the most obvious external feature through the naked eye. The first is the outer packaging of the bearing; the outer packaging of the genuine bearing is very clear whether the line is still the color block; the counterfeit goods print rough, the color is distorted, and the second is to watch the bearing. Row number; take SKF bearing as an example; S is upper narrow and lower width; K and F have pits on the left vertical drawing; bearing type suffix letters A, B, C, D, E, etc.; Silver-white anti-counterfeit identification block; counterfeit product packaging box will not have, the third is to investigate whether the bearing surface has rust and pitting; whether the chamfer can be symmetrical, the third is to carefully observe whether the steel printing can be clear; the stamp of the genuine bearing is not Before the heat treatment, the word is pressed; although the font is purchased, the 茄 浅 浅 逦 逦 逦 逦 安 安 安 安 : : : : : : : : : : : : : : : : : Liang Shuo painted the lemons.
"Smell" Firstly, the odor distinguishes the taste of the bearing anti-rust oil. The anti-rust oil of the genuine bearing is clear and not sticky; it smells almost no smell; and the counterfeit bearing will have gasoline after using the gasoline to remove the iron filings during the fraud. The taste; sometimes it also has aroma; this is primarily the counterfeit bearing sprayed to cover away the gasoline smell left by the bearing.
“Q†The first question is the supplier's supply channel; the larger dealers can check the registration on the official website of the bearing; and the supplier is required to issue the relevant dealer qualification certificate; the dealer is officially designated. Dealer.
"Cut" Firstly, the contact bearing and the transfer bearing can distinguish whether the bearing operation can be smooth. Pull the outer ring of the bearing to make it rotate; listen to whether it can have noise; the control of the production of the genuine bearing is very tight and there will be no debris entering the bearing. Internal; therefore, the bearing operation is smooth without noise, no foreign body sensation; and most counterfeit products have poor production conditions; in the production process, it is inevitable that impurities such as iron filings, sand, etc. will be trapped in the bearing body; Noise.
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I. Product Description
TC-EM-1 is a polymeric emulsifier, which is a low molecular weight, high electropositive organic polymer. It has followed advantages:
1. Easy to use, do not need cooking. Reduce cooking equipment for solid starch and lower down technical condition fluctuation for cooking the starch.
2. Use current water to dilute and prepare, without heating.
3. Provide a strong positive charge to the system
4. High emulsion stability
II. Product Feature
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Appearance
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Red brown liquid
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Solid content %
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25. 50±0.5
|
|
Ionicity
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Cation
|
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PH value
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3.50~4.50
|
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Viscosity(mpa.s/25℃)
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60.0
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III. Product Usage Safety Instruction:
TC-EM-1 may be stimulative to skin and eyes, and it is recommended to use gloves and protective glasses when use. If eye or skin comes into direct contact with this product, immediately rinse with plenty of water for at least 15 minutes.
IV. Application
As a emulsifier and stabilizer of AKD,TC-EM-1 can provide a good stability of the emulsion. With the mechanical stirring, it can disperse AKD as required in the production process, which average particle diameter more than 80% can be less than 1.2 microns. It can also maintain a relative long time after the emulsification, and it has a certain electrical neutral to the slurry.
Please note, under high hardness, the hydrolysis rate of AKD emulsion will be greatly improved. So in order to reduce the rate of hydrolysis, the PH value of emulsified should be controlled between 4.5~5.0 by Citric Acid. TC-EM-1 has low PH value, which saves this part of the operation.
For certain application, the usage of TC-EM-1 should also follow the operating instructions of our company.
V. Other Information
Package: 1000Kg /IBC barrel
Storage: in cool and dry place, avoid frozen and sunshine
Shelf life: 6 months.
AKD Emulsifier
AKD Emulsifier,Starch Based Emulsifier,AKD Emulsifying Agent,25% AKD Emulsifier
Shandong Tiancheng Chemical Co., Ltd. , https://www.akdchemical.nl