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Postby ding2018 » Fri May 18, 2018 3:00 am

three points about how to solve the tensile strength of Rubber Joint How to solve the tensile strength of Rubber Joint ?

(1) selection of hardening agent used alkyl phenolic resin hardener with system hardening Mike Matheny Jersey , the effect is very significant. The resin is added to the compound after curing agent role, with rubber generate three-dimensional network structure, so that RAE vulcanized rubber joints Shore A hardness of 95. Phenolic resins are commonly used in phenol-formaldehyde resins, resorcinol-formaldehyde resin and an alkyl group resorcinol epoxy. The curing agents are used hexamethylene tetramine, RU-modified agent and anhydrous formaldehyde, nitrogen-containing heterocyclic compounds such as aniline.

For example, in the same dosage Brett Cecil Jersey , the modified phenolic resin reinforced BQ-205A instead of general BQ-205 phenolic resin reinforced tire rubber core can increase the hardness of rubber 4-5, and other physical properties remained unchanged.

Acid hardening agent can uncured soft, easy to operate, leaving the vulcanized rubber hardens, a large number of fillers which plastic material is very useful, but also to prevent rubber scorching. In the hard tire apex added 3 parts of benzoic acid, vulcanized rubber hardness can be increased 5-6. Furthermore Carlos Martinez Jersey , oligoester, MMg (magnesium methacrylate) is excellent hardening agent.

Nitrile rubber in the rubber joints using a multifunctional acrylate oligomer and thermofusible phenol resin and used, can effectively improve the hardness of vulcanized rubber. In addition, activation of the filler surface modification, but also a certain degree of hardening effect.

(2) Certain ingredients other methods can effectively improve the hardness of rubber, CR rubber compound such as calcium silicate and 4% of diethylene glycol (dipropylene glycol) and a silica gel compound by adding 2% to 3% of Si-69, can make to increase the hardness of rubber 3-4.

To obtain low hardness Kolten Wong Jersey , low modulus, the first to use polynorbornene, poly-hexene (pure rubber hardness of only 12) and other low hardness of rubber, and secondly, with the anti-its Daoxing can achieve their goals, especially in less filler, to reduce the total degree of crosslinking and type of crosslinks adjusted Randal Grichuk Jersey , for example, M, DM, reducing the amount of active agent Zn0. But the key lies in selecting the right plasticizer to soften and take a variety of softening plasticizers and use. For example, IIR each added 10 parts of naphthenic oils, hardness (Shore A) decreases by approximately 6, the use of Coumarone Jedd Gyorko Jersey , but increased modulus. Preparation of 15 or 30 (ie Shore A) hardness CR rubber roller, often using ointment spindle oil DBP or ointment white mineral oil oil and use system.

(3) A more convenient way is to adjust the hardness of the maximum hardness (hereinafter referred to as PS) and minimum hardness (hereinafter referred to as soft) preparation of two out of the first plastic material, and then press the two different rubber compound mixing ratio after taking tablets cure, you can get the film medium hardness. This method is a simplified procedure that can improve work efficiency.
A nearer comparison with the N9 is not beneficial this Lumia 900 lacks pentaband 3G, so no AWS assistance on T-Mob’s US network. Not only has the notification LED disappeared, but there is no front-going through cam, and the screen has shrunk to accommodate the the Windows Telephones buttons.


On Nokia Lumia 800 there’s 512MB RAM as opposed to a complete 1GB in the N9. Constructed-in storage is 16GB Stephen Piscotty Cardinals Jersey , up coming to the N9’s 64GB. However, the Lumia 800 does characteristic many of the greatest bits of the N9 – the identical expert finesse of a challenging polycarbonate shell and a convex Gorilla Glass screen. The quantity rocker, electricitylock and digital camera buttons on the proper facet are all metal, and there’s a trim speaker grill on the bottom edge. Up leading a 3.5mm jack sits up coming to a dustflap-secured MicroUSB port and microSIM slot. It’s really a chunky gadget at twelve.1mm thick it really is a squat, angular style, nevertheless there is no excuse for the Lumia bulk – the HTC Titan contoured 9.9mm-thick chassis crams in a larger 4.7″ screen.


Inside the oversized casing the Lumia 800 sports a 1.4GHz Qualcomm processor, a slower-clocked model of the same 1.5GHz CPU discovered in the Titan. There ended up occasional lags when opening biggish applications this sort of as Nokia Audio or Local Scout Trevor Rosenthal Cardinals Jersey , but usually it matches the Titan’s overall performance. Then there’s the battery, 1450mAh hard work, compared to the Titan’s significant 1750mAh. But honours are shared battery-clever, thanks to the Lumia 800’s scaled-down display screen and greater power efficiency. Beneath heavy use – a lot of images, e-studying and searching – the Lumia lasted over nine hrs.


Reception and contact top quality are both normal of Nokia higher specifications, and the Lumia 800 rapidly establishes 3G or HSDPA connection when obtainable. It really is an AMOLED exhibit, so blacks are truly deep Dexter Fowler Cardinals Jersey , and colours are saturated, giving breathtaking contrast. It tends to make the striking live tiles of Windows Cellphone Mango truly vibrant. For all that, the display can be slightly fuzzy when rendering selected thin fonts due to the somewhat inferior PenTile-type AMOLED display.


The 8MP camera is the identical gadget discovered in the N9. The lens opens to f2.2, on a par with the best digital camera phones, giving great very low-light efficiency. 720p video seize is also extraordinary if not as excellent as the Titan’s. Neither digital camera handles autofocus well for the duration of video seize. The iPhone 4S, Galaxy SII and Galaxy Note all have better cameras.

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ding2018
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