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 Θέμα :Re: and a of asics gel cumulus t..
Κυριακή, 24 Φεβρουάριος 2019 
Francisca K
Junior
Συμμετοχή από: 2019-02-24 13:23:57
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Forum : Θέματα για το χωρίο
Θέμα : and a of asics gel cumulus t

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 Θέμα :Re: Custom ptfe bushing spherical shape bronze sleeve bearing Manufact..
Τρίτη, 22 Ιανουάριος 2019 
Robert T.
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Συμμετοχή από: 2019-01-22 11:49:46
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Forum : Θέματα για το χωρίο
Θέμα : Custom ptfe bushing spherical shape bronze sleeve bearing Manufacturer

Θέμα :Re: Custom ptfe bushing spherical shape bronze sleeve bearing Manufacturer

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 Θέμα :Re: MoneyPucks that can make NHL 18 Coins..
Τετάρτη, 26 Δεκέμβριος 2018 
Celia145
Junior
Συμμετοχή από: 2018-12-26 06:44:48
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Forum : Εκδηλώσεις 2009
Θέμα : MoneyPucks that can make NHL 18 Coins

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 Θέμα :Re: The adidas Superstar Was The Real adidas Star Of 2016..
Τρίτη, 25 Δεκέμβριος 2018 
Matilda H.
Junior
Συμμετοχή από: 2018-12-25 09:23:53
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Forum : Εκδηλώσεις 2009
Θέμα : The adidas Superstar Was The Real adidas Star Of 2016

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 Θέμα :Re: pandora Disney enthusiast Cinderella and Wonder..
Δευτέρα, 03 Δεκέμβριος 2018 
David B. Furlong
Junior
Συμμετοχή από: 2018-12-03 04:45:10
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Forum : Εκδηλώσεις 2009
Θέμα : pandora Disney enthusiast Cinderella and Wonder

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 Θέμα :Re: Plugged graphite bearing,plugged graphite bushing, graphite plugge..
Κυριακή, 25 Νοέμβριος 2018 
Howell5
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Συμμετοχή από: 2018-11-25 08:16:45
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Forum : Θέματα για το χωρίο
Θέμα : Plugged graphite bearing,plugged graphite bushing, graphite plugged bronze bushing

Θέμα :Re: Plugged graphite bearing,plugged graphite bushing, graphite plugged bronze bushing

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 Θέμα :Re: nike air max 90 clearance ,..
Πέμπτη, 25 Οκτώβριος 2018 
Joseph R
Junior
Συμμετοχή από: 2018-10-25 05:14:24
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Forum : Εκδηλώσεις 2009
Θέμα : nike air max 90 clearance ,

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 Θέμα :Re: Adidas NMD Racing Monochrome Wrap..
Κυριακή, 30 Σεπτέμβριος 2018 
Mary R
Junior
Συμμετοχή από: 2018-09-30 09:12:53
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Forum : Η νέα μας ιστοσελίδα
Θέμα : Adidas NMD Racing Monochrome Wrap

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 Θέμα :Re: Salomon speedcross 3 is growing..
Τετάρτη, 04 Ιούλιος 2018 
duquxogud
Junior
Συμμετοχή από: 2018-07-04 06:48:54
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Forum : Η νέα μας ιστοσελίδα
Θέμα : Salomon speedcross 3 is growing

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 Θέμα :Re: Adidas NMD R1 Khaki Charcoal..
Σάββατο, 30 Ιούνιος 2018 
gimaq
Junior
Συμμετοχή από: 2018-06-30 12:14:48
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Forum : Η νέα μας ιστοσελίδα
Θέμα : Adidas NMD R1 Khaki Charcoal

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 Θέμα :Re: Each individual Deserves any Pandora Style Beads Allure..
Πέμπτη, 28 Ιούνιος 2018 
zevep
Junior
Συμμετοχή από: 2018-06-28 09:52:19
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Forum : Η νέα μας ιστοσελίδα
Θέμα : Each individual Deserves any Pandora Style Beads Allure

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 Θέμα :Re: Let’s Start Our Journey of Nike Air conditioning Cushion...
Σάββατο, 09 Ιούνιος 2018 
Lillyaegen
Junior
Συμμετοχή από: 2018-06-09 09:25:33
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Forum : Η νέα μας ιστοσελίδα
Θέμα : Let’s Start Our Journey of Nike Air conditioning Cushion.

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 Θέμα :pandora Disney special someone Cinderella and Attractiveness..
Παρασκευή, 01 Ιούνιος 2018 
Moyes
Junior
Συμμετοχή από: 2018-06-01 05:45:03
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Forum : Θέματα για το χωρίο
Θέμα : pandora Disney special someone Cinderella and Attractiveness

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 Θέμα :pandora Disney enthusiast Cinderella and Wonder..
Παρασκευή, 01 Ιούνιος 2018 
Moyes
Junior
Συμμετοχή από: 2018-06-01 05:45:03
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Περιοχή
Forum : Εκδηλώσεις 2009
Θέμα : pandora Disney enthusiast Cinderella and Wonder

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 Θέμα :Adidas NMD Racing Monochrome Wrap..
Παρασκευή, 01 Ιούνιος 2018 
Moyes
Junior
Συμμετοχή από: 2018-06-01 05:45:03
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Forum : Η νέα μας ιστοσελίδα
Θέμα : Adidas NMD Racing Monochrome Wrap

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 Θέμα :Re: Plugged graphite bearing,plugged graphite bushing, graphite plugge..
Δευτέρα, 14 Μάιος 2018 
Campbell5
Junior
Συμμετοχή από: 2018-05-14 17:28:11
Καταχωρήσεις: 1
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Forum : Θέματα για το χωρίο
Θέμα : Plugged graphite bearing,plugged graphite bushing, graphite plugged bronze bushing

Θέμα :Re: Plugged graphite bearing,plugged graphite bushing, graphite plugged bronze bushing

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 Θέμα :Slippers for Women Authentic Design or Original Design Sandals..
Δευτέρα, 09 Απρίλιος 2018 
ziory
Junior
Συμμετοχή από: 2018-04-09 08:28:24
Καταχωρήσεις: 1
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Forum : Θέματα για το χωρίο
Θέμα : Slippers for Women Authentic Design or Original Design Sandals

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 Θέμα :Marine Bronze bushing SL4 flanged bushing China Factory..
Πέμπτη, 22 Μάρτιος 2018 
slidebearing
Junior
Συμμετοχή από: 2018-03-16 06:39:18
Καταχωρήσεις: 10
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Forum : Θέματα για το χωρίο
Θέμα : Marine Bronze bushing SL4 flanged bushing China Factory

The most practical knowledge of bearing bearing design and extend bearing life
The most practical knowledge of bearing bearing design and extend bearing life:


Using the precision ball bearings, the experts mentioned to me that the two requirements: one is in the process.Must note that the bearing is in use for a period of time should pay attention to clean after self-lubricating copper set of bearing, if I don't clean the small cracks in bearing this is very important for such small cracks will lead to greater bearing damage is very important


Marine Bronze bushing SL4 is very important to notice that will give me their interests will be bearing steel casting copper for longer service life.One thing to note, it is necessary to pay attention to clean bearing.Use bearing lubrication bearing need this point is very important if there is no lubrication bearing and mechanical friction, is going to be huge this will bring some damage.So I must pay attention to.


Required to listen, these two points is an expert advice.It would be colliers brass greatly improve the service life of bearing.Greater benefits, so I can lake to be nice to me at the same time, also brought a greater return on investment for me.


The model is suitable for a given application order will be more or less different.For example, each bearing types according to different characteristics of design.Deep groove ball bearing, bearing an acceptable medium level of radial and axial load.Have lower friction, can produce high precision, satisfy various requirements quiet operation.So he is more suitable for small and medium-sized motor.


flanged bushing can automatic calibration.These features make it very suitable for this kind of heavy engineering, spherical roller bearing can be accepted and carbohydrates bearing load is very high.The project will be a heavy load, the deflection of shaft and disorder.
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 Θέμα :FU flanged oil retaining bronze bushing steel ball bearings Factory..
Πέμπτη, 22 Μάρτιος 2018 
slidebearing
Junior
Συμμετοχή από: 2018-03-16 06:39:18
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Forum : Θέματα για το χωρίο
Θέμα : FU flanged oil retaining bronze bushing steel ball bearings Factory

precision balls, skateboarding self-lubricating, metallurgical equipment, copper skateboard
Copper slide groove or ridge or other materials that can withstand the fixed guide device and a mobile device or a device which reduce friction. STW guide table from the longitudinal grooves or ridges lubricated slide surface for guiding the fixed machine parts, special equipment, and other equipment. Also known as slide rails, linear guides, linear slides, linear PCWPT for self-lubricating slide bushes in reciprocating motion, with a higher than linear bearings rated load, and can assume certain torque, can be achieved in the case of high load high precision linear motion.

FU flanged oil retaining bronze bushing refers to all kinds of machinery and equipment in the metallurgical industry, smelting, ingot, rolling, handling and packaging SEW self-lubricating slide during use. Also known as metallurgical machinery. Metallurgical process complex process, appropriate machinery for metallurgy is characterized by large-scale structure, large energy consumption, continuous production, complete sets of equipment and strong. Most metallurgical machinery continued to work in hot, dusty, heavy and corrosive conditions must be met efficient, reliable, complete, durable and energy-saving requirements.

Bronze is a high strength heat-resistant aluminum bronze, high temperature (400 ℃) under stable mechanical properties, good anti-friction properties, in the atmosphere, freshwater and seawater corrosion resistance is very good, hot under pressure processing is good, can be heat strengthened can be welding, brazing is not easy, cutting is still good.

Bronze cast copper alloy wear and corrosion resistance, easy processing, casting properties and good air tightness. For higher loads, medium sliding speeds of wear resistant parts, such as bearings, bushings, copper sleeve, bushing, cylinder, piston clutch, pump parts gland and worm gears.steel ball bearingsis also one of the important parts of metallurgical equipment.
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 Θέμα :Square flange sintered bronze bushing oilless bearing Manufacturer..
Πέμπτη, 22 Μάρτιος 2018 
slidebearing
Junior
Συμμετοχή από: 2018-03-16 06:39:18
Καταχωρήσεις: 10
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Forum : Θέματα για το χωρίο
Θέμα : Square flange sintered bronze bushing oilless bearing Manufacturer

the bearing ring heat treatment study and application of new technology


The cooling capacity of quenching medium and hardening ability is an important factor affecting the quality of precision linear bearings ring heat treatment.Apparently and artifacts of metallurgical factors, the shape of the curve C on cooling and cooling conditions and so on.The cooling capacity of quenching medium, can make the work piece after quenching hardness higher or deeper hardening layer.In fact, the key of hardening is at the tip curve C cold speed should be enough big, but in martensitic transformation required cooling speed is relatively small.The application of new technology is adapted to this feature.By changing the workpiece and the relative speed of quenching oil, change the cooling of quenching medium and hardening ability, satisfy the workpiece formed under different temperature requirements of different cooling rate, thus obtain ideal quenching quality.


1. Cooling strength test analysis


Analysis after many experiments show that the new process change cooling mode,
Square flange sintered bronze bushing can improve the oil cooling intensity, thus improve the quality of heat treatment.The parameters of the cooling intensity H is the ability to reflect the cooling medium, H = alpha lambda / 2 (alpha as the interface heat transfer coefficient; lambda thermal conductivity of steel).Static water H value is 0.1.The more the cooling capacity of the H value, the greater the medium.In the experiment, according to quenching medium under the condition of different agitation, cooling intensity changes are shown in table 1, with strong stirring oil quenching, H value can reach 0.7, usually oil quenching H value is 0.3.


2. The organization analysis and hardness test


Ring in the process of testing the product model at 314/01, quenching temperature is 840.40 ℃, machine oil, coolant for 10 ring in static quenching and cooling conditions, through many experiments, it is concluded that ring troostite level changes in the microstructure, ring in static and dynamic cooling conditions, organization closely size differ about 5 ~ 10 times, under the condition of channeling dynamic cooling, fell to 0.5 hardness difference of the same race.

3. The application of new technology and equipment improvement


New technology is by changing the production facilities, the quenching oil and water jacket cooling circulation cooling, cooling with large flow pump the oil from the bottom of the quench tank after injection, to form the circulation under the funnel, uniform, again after a two layer oil column of orifice plate to form homogeneous swells up injection, boiled in oil tank are angled.And by changing the pump output flow, change the relative speed ring and oil, meet in the process of organization form to the requirement of different cooling rate, while the upper heat up the oil drain in time, make basic equilibrium in the oil tank, the lower the oil temperature.Not only makes the oil filter oil cooling system can fully cooling, and makes oil can get very good purification.New process which satisfies the requirement of GCr15 steel for high temperature cooling rate high request, to ensure the uniformity of quenching hardness and hardness, and can meet the workpiece under the low temperature austenitizing grain finer and low carbon, chromium content austenitic required critical quenching speed, refined martensite matrix organization, avoid quenching crack, the bearing ring quenching hardness stability control in HRC64 ~ 65.5, quenching microstructure of 2 ~ 3 grade.With 2 levels of multiple, outer diameter ¢above 100 mm ring diameter changes after quenching amount of super rate fell to about 7%, the workpiece surface after quenching brightness increased, the quality of all qualified, reduce the waste and loss of repair.


Production facilities improvement is hot quenching tank upper-middle-class oil overflow to the filtration unit, and then into a set of overhead of brass tube cooler in (place) in the cleaning cycle pool, and then after cooling in oil pump oil pump into the bottom of the quench tank, between two layers of aperture is ¢5 mm, pitch of 20 mm x 20 mm of porous plate, orifice on the second floor of a staggered,GE ES spherical plain bearing ensure uniform cooling oil on the rise.
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