Induksion isitish pechi po’lat quvurni qizdirganda oqim chastotasini qanday tanlash mumkin?

Induksion isitish pechini isitish po’lat quvur, odatda, issiqlik orqali o’tadi, shuning uchun chastotani tanlashda, D issiq holatidagi oqim quvur devorining qalinligidan katta bo’lishi kerak.

2 -jadval -. 8da solenoidli induksion isitish po’lat quvurlari va po’latdan yasalgan optimal chastotalar ko’rsatilgan va 2.9 -jadvalda (Kyuri nuqtasidan yuqorisida) po’lat quvur devorlarining qalinligi har xil chastotalarda eng yuqori samaradorlikka erishish uchun isitiladi.

Jadval 2-8 Spiral quvurli induktor po’lat quvur va po’lat quvurni isitganda eng yaxshi chastota

Quvurning tashqi diametri /mm	Devor qalinligi/ mm	Eng yaxshi chastota /kHz
Quvurning tashqi diametri /mm	Devor qalinligi/ mm	20 ℃	800 ℃	1200 ℃
Magnit bo’lmagan po’lat
12. 7	1	51	85	92
	2	28	47	50
	3	yigirma bir	34	37
25.4	1	25	41	44
	2	13	21	23
	3	8.9	15	16
	5	5.9	9. 8	11
50. 8	1	12	20	22
	2	6. 1	10. 1	11
	3	4.2	6.9	7.5
	5	2.6	4. 3	4.7
76.2	1	7.9	13.2	14.3
	2	4	6.7	7.2
	3	2.7	4.5	4.9
	5	1.7	2. 8	3
102	1	5.9	9.9	10.6
	2	3	5	5.4
	3	2	3.4	3.6
	5	1.2	2. 1	2.2
12.7		1.33	3.7	6. 3
		0. 73	2	3.4
		0. 54	1.5	2.5

Jadval 2-9 Har xil chastotalarda eng yuqori rentabellikni olish uchun po’lat quvurlarni isitish uchun eng yaxshi devor qalinligi (Kyuri nuqtasidan yuqori bo’lganda)

Chastotasi /Gts	Diametri /mm
Chastotasi /Gts	5	10	20	50	100	200	300	500	10000	20000
50							25	15	7	3
150						25	10	5	2.1	1
500					20	5	2.5	1.5	0.75	0.3
1000					10	4	1.3	0.7	0.4	0. 15
2400				10	3	1.5	0.6	0. 3	0. 13
4000				5	2	0.8	0.3	0. 18	0. 07
10000			5	1.8	0.7	0. 35	0. 13	0. 08
70000		2	0.6	0.21	0. 11
440000	0.6	0.2	0. 09