Factory Promotional 87643-Interlock Hose Fitting to Czech Republic Manufacturers

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45° SAE FLANGE 6000 P.S.I. PART NUMBER HOSE FLANGE B mm L mm D mm M mm S mm DN In SIZE H876C0 – 10 – 12 16 5/8″ 10 3/4″ 18 61,9 41,3 28 8,76 H876C0 – 12 – 12 20 3/4″ 12 3/4″ 18 69,9 41,3 30,5 8,76 H876C0 – 12 – 16 20 3/4″ 12 1″ 23 72,6 47,6 33,3 9,53 H876C0 – 16 – 16 25 1″ 16 1″ 23 85,5 47,6 37,5 9,53 H876C0 – 16 ...

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Factory Promotional 87643-Interlock Hose Fitting to Czech Republic Manufacturers Detail:

45° SAE FLANGE 6000 P.S.I.

PART NUMBER	HOSE			FLANGE	B mm	L mm	D mm	M mm	S mm
	DN	In	SIZE
H876C0 – 10 – 12	16	5/8″	10	3/4″	18	61,9	41,3	28	8,76
H876C0 – 12 – 12	20	3/4″	12	3/4″	18	69,9	41,3	30,5	8,76
H876C0 – 12 – 16	20	3/4″	12	1″	23	72,6	47,6	33,3	9,53
H876C0 – 16 – 16	25	1″	16	1″	23	85,5	47,6	37,5	9,53
H876C0 – 16 – 20	25	1″	16	1.1/4″	30	87,9	54	40,1	10,29
H876C0 – 20 – 20	32	1.1/4″	20	1.1/4″	30	100,2	54	43	10,29
H876C0 – 20 – 24	32	1.1/4″	20	1.1/2″	36	105,1	63,5	47,9	12,57
H876C0 – 24 – 24	40	1.1/2″	24	1.1/2″	36	113	63,5	51,8	12,57
H876C0 – 24 – 32	40	1.1/2″	24	2″	48	120,4	79,4	59,2	12,57
H876C0 – 32 – 32	50	2″	32	2″	48	150,8	79,4	67,8	12,57

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We constantly believe that one's character decides products' high quality, the details decides products' high-quality ,together with the REALISTIC,EFFICIENT AND INNOVATIVE crew spirit for Factory Promotional 87643-Interlock Hose Fitting to Czech Republic Manufacturers, The product will supply to all over the world, such as: India, Portugal, Ukraine, All our staffs believe that: Quality builds today and service creates future. We know that good quality and the best service are the only way for us to achieve our customers and to achieve ourselves too. We welcome customers all over the word to contact us for future business relationships. Our products are the best. Once Selected, Perfect Forever!

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VERY FIRST PROTOTYPE, this is my first field test, not recommended to build! It is very unstable as you might seen from my third video.
Concept image : https://c2.staticflickr.com/4/3668/33257290015_177ba11163_o.png

– Transformer coupled series resonant induction heater –

Induction heaters need a lot of power, this power can be only delivered efficiently with high voltage, any industrial IH uses single or three phase mains.
Low voltage is only good for prototyping. Using a lab power supply provides benefits like voltage and current limiting, so you don’t blow up your parts by mistake.

Series resonant tank properties :
Resonant frequency (empty coil) = 45kHz
Capacitance = 5µF
Stray inductance = 0,6µH
Coil inductance = 1,9µH
Overall inductance = 2,5µH
Max Capacitor voltage = 650Vrms
Max estimated current = 1000Irms

The voltage fed full bridge inverter is a very important part of the system, it converts the DC into high frequency. For that it needs a proper gate drive, cooling, decoupling caps and more probably.

Also important for efficient switching is dead time to prevent cross conduction.

The gate driver is not that good currently, no doubt since it’s my first one that I got working.
Following image shows the distorted gate-source voltage of one mosfet, yellow waveform = gate voltage, blue = drain voltage

https://c1.staticflickr.com/9/8035/29299132080_3c7fe152b3.jpg

Parts used :

1. -Oscillator-
NE555P Timer
10k Trimmer Potentiometer
5k Multi Turn Potentiometer 3600°
270ohm Resistor
5600ohm Resistor
3,3 nF Capacitor
1 nF Capacitor

2. -Signal Amplifier-
1x 1200ohm Resistor
2x BD681
2x BD190
2x 470uF Capacitor
1x IRF4905
1x IRFZ46N *

3. -Gate Drive Transformer-
1x small ferrite toroid core
4 Different colored wires (easier to distinguish)

4. -Fullbridge Inverter-
1x Stripboard
4x PCB terminal blocks with 3 connectors
1x AMD 6850 Heatsink
1x Full bridge rectifier = KBPC3510
4x Epcos 1000uf 400v electrolytic capacitor
4x IRFP360
4x TO-247 Mica sheet isolator
2x Wima 400V 100nF
2x 220uF 400V electrolytic capacitor
4x M3 mounting screws

5. -Gate resistor-
4x 47ohm

6. -LC Tank Circuit-
50x Wima FKP1 100nF 1600DC 650VAC
- 15mm Soft copper tubing (workcoil)
- 15mm straight copper tubing
2x 15mm 90 degree fittings
2x 15mm threaded fittings
2x Copper sheet 10x50cm

7. -Impedance Matching Transformer-
4x Epcos ferrite toroid core B64290L82X830
1x Medium gauge insulated wire

8. -Water cooling-
1x Rotek PUM292
1x Vinyl tube 14mm inner 18mm outer diameter
2x Brass hose nipple

9. -Operation on 2300W-
Mains with 230VAC
Autotransformer RFT Stelltrafo LSS 010

Max temperature of the workpiece estimated from the color = 1400-1500°C

*References*

https://www.sms-elotherm.com/images/fachberichte/en/EloMat-01-2013-fb_zok.pdf

https://inductionheatertutorial.com/

https://webpages.charter.net/dawill/tmoranwms/Elec_IndHeat1.html

https://uzzors2k.4hv.org/index.php?page=pllinductionheater1

https://danyk.cz/induk3_en.html

https://4hv.org/e107_plugins/forum/forum_viewtopic.php?168388?

https://4hv.org/e107_plugins/forum/forum_viewtopic.php?140297

The ToothLock® is designed as a self-locking mechanism and increases the performance due to the low spring back rate.

The quality of the products is very good, especially in the details, can be seen that the company work actively to satisfy customer's interest, a nice supplier.