Ïîèñê ïî áàçå äîêóìåíòîâ:

Áåñïëàòíîå îáó÷åíèå ïî àëãîòðåéäèíãó íà Python è Backtrader

 

Óòâåðæäåí è ââåäåí â äåéñòâèå

Ïîñòàíîâëåíèåì Ãîññòàíäàðòà ÑÑÑÐ

îò 25 ôåâðàëÿ 1981 ã. N 981

 

ÃÎÑÓÄÀÐÑÒÂÅÍÍÛÉ ÑÒÀÍÄÀÐÒ ÑÎÞÇÀ ÑÑÐ

 

ÏÐÎÂÎËÎÊÀ ÊÐÓÃËÀß ÕÎËÎÄÍÎÒßÍÓÒÀß

 

ÑÎÐÒÀÌÅÍÒ

 

Cold-drawn round wire. Gauge

 

ÃÎÑÒ 2771-81

 

Ãðóïïà Â70

 

ÎÊÏ 12 0000

 

Äàòà ââåäåíèÿ

1 ÿíâàðÿ 1983 ãîäà

 

 

1. Ðàçðàáîòàí è âíåñåí Ìèíèñòåðñòâîì ÷åðíîé ìåòàëëóðãèè ÑÑÑÐ.

Ðàçðàáîò÷èêè: Ê.Ã. Çàëÿëþòäèíîâ, Í.À. Ãàëêèíà, Í.Ì. Øóãàåâà, Í.Ã. Æèãàëåâà.

2. Óòâåðæäåí è ââåäåí â äåéñòâèå Ïîñòàíîâëåíèåì Ãîñóäàðñòâåííîãî êîìèòåòà ÑÑÑÐ ïî ñòàíäàðòàì îò 25.02.1981 N 981.

3. Â ñòàíäàðò ââåäåí Ìåæäóíàðîäíûé ñòàíäàðò ÈÑÎ R 388-64 (Å).

 ñòàíäàðò ââåäåí ÑÒ ÑÝ 144-75.

4. Âçàìåí ÃÎÑÒ 2771-57.

5. Îãðàíè÷åíèå ñðîêà äåéñòâèÿ ñíÿòî ïî ïðîòîêîëó N 7-95 Ìåæãîñóäàðñòâåííîãî ñîâåòà ïî ñòàíäàðòèçàöèè, ìåòðîëîãèè è ñåðòèôèêàöèè (ÈÓÑ 11-95).

6. Ïåðåèçäàíèå (àïðåëü 1998 ã.) ñ Èçìåíåíèåì N 1, óòâåðæäåííûì â èþíå 1987 ã. (ÈÓÑ 9-87).

 

1. Íàñòîÿùèé ñòàíäàðò óñòàíàâëèâàåò ñîðòàìåíò è ïðåäåëüíûå îòêëîíåíèÿ õîëîäíîòÿíóòîé ïðîâîëîêè êðóãëîãî ñå÷åíèÿ áåç ïîêðûòèÿ äèàìåòðîì îò 0,009 äî 16,0 ìì.

2. Íîìèíàëüíûå äèàìåòðû ïðîâîëîêè äîëæíû ñîîòâåòñòâîâàòü óêàçàííûì íà ÷åðòåæå è â òàáë. 1.

 

 

Òàáëèöà 1

 

                                                                ìì

──────────────────────────────────────────────────────────────────

             Íîìèíàëüíûé äèàìåòð ïðîâîëîêè d äëÿ ðÿäîâ

────────────────┬──────────────┬────────────────┬─────────────────

      R 5            R 10          R 20             R 40

────────────────┼──────────────┼────────────────┼─────────────────

                                              │0,009

0,010           │0,010         │0,010           │0,010

                                              │0,011

                              │0,012           │0,012

                                              │0,014

                │0,016         │0,016           │0,016

                                              │0,018

                              │0,020           │0,020

                                              │0,022

0,025           │0,025         │0,025           │0,025

                                              │0,028

                              │0,032           │0,032

                                              │0,036

                │0,040         │0,040           │0,040

                                              │0,045

                              │0,050           │0,050

                                              │0,056

0,063           │0,063         │0,063           │0,063

                                              │0,070

                              │0,080           │0,080

                                              │0,090

0,100           │0,100         │0,100           │0,100

                                              │0,105

                              │0,110           │0,110

                                              │0,115

                │0,120         │0,120           │0,120

                                              │0,130

                              │0,140           │0,140

                                              │0,150

0,160           │0,160         │0,160           │0,160

                                              │0,170

                              │0,180           │0,180

                                              │0,190

                │0,200         │0,200           │0,200

                                              │0,210

                              │0,220           │0,220

                                              │0,240

0,250           │0,250         │0,250           │0,250

                                              │0,260

                              │0,280           │0,280

                                              │0,300

                │0,320         │0,320           │0,320

                                              │0,340

                              │0,360           │0,360

                                              │0,380

0,400           │0,400         │0,400           │0,400

                                              │0,420

                              │0,450           │0,450

                                              │0,480

                │0,500         │0,500           │0,500

                                              │0,530

                              │0,560           │0,560

                                              │0,600

0,630           │0,630         │0,630           │0,630

                                              │0,670

                              │0,700           │0,700

                                              │0,750

                │0,800         │0,800           │0,800

                                              │0,850

                              │0,900           │0,900

                                              │0,950

1,000           │1,000         │1,000           │1,000

1,00            │1,00          │1,00            │1,00

                                              │1,05

                              │1,10            │1,10

                                              │1,15

                │1,20          │1,20            │1,20

                                              │1,30

                              │1,40            │1,40

                                              │1,50

1,60            │1,60          │1,60            │1,60

                                              │1,70

                              │1,80            │1,80

                                              │1,90

                │2,00          │2,00            │2,00

                                              │2,10

                              │2,20            │2,20

                                              │2,40

2,50            │2,50          │2,50            │2,50

                                              │2,60

                              │2,80            │2,80

                                              │3,00

                │3,20          │3,20            │3,20

                                              │3,40

                              │3,60            │3,60

                                              │3,80

4,00            │4,00          │4,00            │4,00

                                              │4,20

                              │4,50            │4,50

                                              │4,80

                │5,00          │5,00            │5,00

                                              │5,30

                              │5,60            │5,60

                                              │6,00

6,30            │6,30          │6,30            │6,30

                                              │6,70

                              │7,00            │7,00

                                              │7,50

                │8,00          │8,00            │8,00

                                              │8,50

                              │9,00            │9,00

                                              │9,50

10,00           │10,00         │10,00           │10,00

10,0            │10,0          │10,0            │10,0

                                              │10,5

                              │11,0            │11,0

                                              │11,5

                │12,0          │12,0            │12,0

                                              │13,0

                              │14,0            │14,0

                                              │15,0

16,0            │16,0          │16,0            │16,0

 

3.  ñòàíäàðòàõ è òåõíè÷åñêèõ óñëîâèÿõ íà êîíêðåòíûå âèäû ïðîâîëîêè íîìèíàëüíûå äèàìåòðû óñòàíàâëèâàþòñÿ â çàâèñèìîñòè îò òðåáóåìîé òî÷íîñòè îêðóãëåíèåì äî ïåðâîãî èëè âòîðîãî äåñÿòè÷íîãî çíàêà ÷èñëîâûõ çíà÷åíèé òàáë. 1. Ïðàâèëà îêðóãëåíèÿ ïî ÑÒ ÑÝ 543-77.

4. Ïî òðåáîâàíèþ ïîòðåáèòåëÿ äîïóñêàåòñÿ â ñòàíäàðòàõ è òåõíè÷åñêèõ óñëîâèÿõ íà ïðîâîëîêó, ïðåäíàçíà÷åííóþ äëÿ íàêàòêè è íàðåçàíèÿ ðåçüáû, õîëîäíîé âûñàäêè è äðóãèõ öåëåé, óñòàíàâëèâàòü íîìèíàëüíûå äèàìåòðû, íå ïðåäóñìîòðåííûå òàáë. 1.

5. Ïðåäåëüíûå îòêëîíåíèÿ íîìèíàëüíûõ äèàìåòðîâ ïðîâîëîêè â çàâèñèìîñòè îò ïîëÿ äîïóñêà è òî÷íîñòè èçãîòîâëåíèÿ äîëæíû ñîîòâåòñòâîâàòü òàáë. 2 è 3.


 

Òàáëèöà 2

 

                                                                         ìì

────────────────────────┬────────────────────────────────────────────────────────────────────────

   Èíòåðâàë äèàìåòðîâ                            Ïðåäåëüíîå îòêëîíåíèå

                        ├────────────────────────────────────────────────────────────────────────

                                                   Ïîëå äîïóñêà h

                        ├────────────────────────────────────────────────────────────────────────

                                                      Êâàëèòåòû

                        ├─────────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────

                            3      4     5     6     7     8     9     10    11    12

────────────────────────┼─────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────

   0,009                │+/- 0,002│-     │-     │-     │-     │-     │-     │-     │-     │-

Îò 0,010 äî 0,028 âêëþ÷.│-0,002   │-0,003│-0,004│-0,006│-     │-     │-     │-     │-     │-

Ñâ. 0,028 " 0,090  "    │-        │-0,003│-0,004│-0,006│-0,010│-     │-     │-     │-     │-

 "  0,090 " 0,300  "    │-        │-     │-     │-0,006│-0,010│-0,014│-0,025│-0,040│-     │-

 "  0,300 " 1,000  "    │-        │-     │-     │-     │-0,010│-0,014│-0,025│-0,040│-0,060│-

 "  1,00  " 3,00   "    │-        │-     │-     │-     │-     │-0,014│-0,025│-0,040│-0,060│-0,100

 "  3,00  " 6,00   "    │-        │-     │-     │-     │-     │-0,018│-0,030│-0,048│-0,075│-0,120

 "  6,00  " 10,00  "    │-        │-     │-     │-     │-     │-0,022│-0,036│-0,058│-0,090│-0,150

 "  10,0  " 16,0   "    │-        │-     │-     │-     │-     │-0,027│-0,043│-0,070│-0,110│-0,180

 

Òàáëèöà 3

 

                                                                         ìì

────────────────────────┬────────────────────────────────────────────────────────────────────────────────────────────

   Èíòåðâàë äèàìåòðîâ                                    Ïðåäåëüíîå îòêëîíåíèå

                        ├────────────────────────────────────────────────────────────────────────────────────────────

                                                            Ïîëå äîïóñêà j

                                                                          s

                        ├────────────────────────────────────────────────────────────────────────────────────────────

                                                               Êâàëèòåòû

                        ├─────────┬──┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────┬─────────

                            3    │4 │    5        6        7        8        9       10       11       12

────────────────────────┼─────────┼──┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────┼─────────

   0,009                │+/- 0,001│- │-        │-        │-        │-        │-        │-        │-        │-

Îò 0,010 äî 0,028 âêëþ÷.│-        │- │+/- 0,002│+/- 0,003│-        │-        │-        │-        │-        │-

Ñâ. 0,028 " 0,090  "    │-        │- │+/- 0,002│+/- 0,003│+/- 0,005│-        │-        │-        │-        │-

 "  0,090 " 0,300  "    │-        │- │-        │+/- 0,003│+/- 0,005│+/- 0,007│+/- 0,012│+/- 0,020│-        │-

 "  0,300 " 1,000  "    │-        │- │-        │-        │+/- 0,005│+/- 0,007│+/- 0,012│+/- 0,020│+/- 0,030│-

 "  1,00  " 3,00   "    │-        │- │-        │-        │-        │+/- 0,007│+/- 0,012│+/- 0,020│+/- 0,030│+/- 0,050

 "  3,00  " 6,00   "    │-        │- │-        │-        │-        │+/- 0,009│+/- 0,015│+/- 0,024│+/- 0,037│+/- 0,060

 "  6,00  " 10,00  "    │-        │- │-        │-        │-        │+/- 0,011│+/- 0,018│+/- 0,029│+/- 0,045│+/- 0,075

 "  10,0  " 16,0   "    │-        │- │-        │-        │-        │+/- 0,013│+/- 0,021│+/- 0,035│+/- 0,055│+/- 0,090

 

6.  ñòàíäàðòàõ è òåõíè÷åñêèõ óñëîâèÿõ íà êîíêðåòíûå âèäû ïðîâîëîêè äîïóñêàåòñÿ îêðóãëåíèå âåëè÷èíû ïðåäåëüíûõ îòêëîíåíèé äî ñîòûõ äîëåé ìèëëèìåòðà.

1 - 6. (Èçìåíåííàÿ ðåäàêöèÿ, Èçì. N 1).

7. Îâàëüíîñòü ïðîâîëîêè íå äîëæíà ïðåâûøàòü ïîëîâèíû ïîëÿ äîïóñêà ïî äèàìåòðó.  ñòàíäàðòàõ è òåõíè÷åñêèõ óñëîâèÿõ íà ïðîâîëîêó îáùåãî íàçíà÷åíèÿ äîïóñêàåòñÿ ïîâûøåííàÿ îâàëüíîñòü ïðè óñëîâèè, ÷òî îíà íå âûâîäèò ïðîâîëîêó çà ïðåäåëüíûå îòêëîíåíèÿ ïî äèàìåòðó.

8. Ïðåäåëüíûå îòêëîíåíèÿ â ñòàíäàðòàõ è òåõíè÷åñêèõ óñëîâèÿõ íà êîíêðåòíûå âèäû ïðîâîëîêè ìîãóò çàäàâàòüñÿ ÷èñëîâûìè çíà÷åíèÿìè ïî òàáë. 2 è 3 è îáîçíà÷åíèåì, êîòîðîå âêëþ÷àåò ïîëå äîïóñêà (h èëè ) è êâàëèòåò.

Ìèíóñîâûå ïðåäåëüíûå îòêëîíåíèÿ îáîçíà÷àþòñÿ h3, h4..., h12, äâóõñòîðîííèå , ..., .

(Èçìåíåííàÿ ðåäàêöèÿ, Èçì. N 1).

 

 





ÒÅÕÍÎÐÌÀÒÈÂÛ ÄËß ÑÒÐÎÈÒÅËÅÉ È ÏÐÎÅÊÒÈÐÎÂÙÈÊÎÂ

ßíäåêñ öèòèðîâàíèÿ


Copyright © www.docstroika.ru, 2013 - 2024