Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/plg_ztools/plg_ztools.php on line 33

Strict Standards: Declaration of JParameter::loadSetupFile() should be compatible with JRegistry::loadSetupFile() in /home3/ptspars/public_html/libraries/joomla/html/parameter.php on line 512

Strict Standards: Declaration of JCacheControllerPage::store() should be compatible with JCacheController::store($data, $id, $group = NULL) in /home3/ptspars/public_html/libraries/joomla/cache/controller/page.php on line 199

Strict Standards: Declaration of fa_IRDate::calendar() should be compatible with JDate::calendar($format, $local = false, $translate = true) in /home3/ptspars/public_html/language/fa-IR/fa-IR.localise.php on line 223

Strict Standards: mktime(): You should be using the time() function instead in /home3/ptspars/public_html/plugins/system/vvisit_counter/vvisit_counter.php on line 32

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 28

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 120

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 123

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/vvisit_counter.php on line 38

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/vvisit_counter.php on line 92

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/plg_ztools/plg_ztools.php on line 115

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Strict Standards: Non-static method JSite::getMenu() should not be called statically, assuming $this from incompatible context in /home3/ptspars/public_html/templates/zt_eoty/zt_menus/zt.common.php on line 256

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شرکت پیشتاز تدبیر استیل پارس - ساچمه شکسته

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/modules/mod_zt_headline/helper.php on line 12

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/modules/mod_zt_headline/helper.php on line 13

Strict Standards: Non-static method JSite::getMenu() should not be called statically in /home3/ptspars/public_html/modules/mod_zt_headline/helper.php on line 14

Strict Standards: Non-static method JApplication::getMenu() should not be called statically in /home3/ptspars/public_html/includes/application.php on line 539

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/modules/mod_zt_headline/helper.php on line 14

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/modules/mod_zt_headline/helper.php on line 15
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بازدید کنندگان


Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/modules/mod_vvisit_counter/mod_vvisit_counter.php on line 99

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/modules/mod_vvisit_counter/mod_vvisit_counter.php on line 103

Strict Standards: mktime(): You should be using the time() function instead in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter_timestart.php on line 28

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/modules/mod_vvisit_counter/mod_vvisit_counter.php on line 124

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 107

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 107

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 107

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 107

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 107

Strict Standards: Only variables should be assigned by reference in /home3/ptspars/public_html/plugins/system/vvisit_counter/helper/vvisit_counter.php on line 107
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گريت فولادي

 

 گريت فولادي به وسيله خرد كردن ساچمه فولادي و به صورت ذرات زاويه دار توليد ميشوند، و سپس تحت عمليات حرارتي  به سختي مورد نظر رسيده ، سپس  به وسيله الك به سايز هاي  مختلف

( طبق استاندارد  BS EN ISO 11124-3 )درجه بندي مي شود.

 

گريت فولادي مناسب براي خشن كاري سطوح مي باشد. گريت به سرعت انواع آلودگي ها ي روي سطوح فولادي  قطعات ريخته گري را مي زدايد.گريت فولادي از اكسيد آلمينيوم نرم تر است و به راحتي ترك نمي برد، و به همين دليل براي هواپيما سازي و صنايع هواپيمايي مناسب است.ماهيت زاويه دار گريت سطوح را مناسب براي پذيرش رنگ ، لعاب و ديگر پوششها مي سازد.

 

گريت نرم تر از (50-40 )HRC هنگام استفاده به سرعت زواياي خود را از دست داده و گرد مي شود و براي زدودن سريع اكسيد ها  و تميز كاري قالبها مناسب است . گريتهاي سخت تر (65-55 ) HRC  ماهيت زاويه اي خود را حفظ كرده و براي برش هاي متوالي مناسب است.

 

 

 

سايز بندي :

 

 

:  تقسيم بندي انواع گريت

                                                                                                                               

 

% : min & max cumulative percentages allowed on corresponding sieves

 

Product

 

size (mm)

 

G10

all pass

 

80% min

90% min

 

 

 

 

 

 

 

 

 

 

 

2.0 - 2.8

G12

 

all pass

 

80% min

90% min

 

 

 

 

 

 

 

 

 

 

1.7 - 2.4

G14

 

 

all pass

 

80% min

90% min

 

 

 

 

 

 

 

 

 

1.4 - 2.0

G16

 

 

 

all pass

 

75% min

85% min

 

 

 

 

 

 

 

 

1.2 - 1.7

G18

 

 

 

 

all pass

 

75% min

 

85% min

 

 

 

 

 

 

1.0 - 1.4

G25

 

 

 

 

 

all pass

 

 

70% min

 

 

80% min

 

 

 

0.71 - 1.2

G40

 

 

 

 

 

 

all pass

 

 

 

 

70% min

 

80% min

 

0.42 - 1.0

G50

 

 

 

 

 

 

 

 

all pass

 

 

 

 

65% min

75% min

0.3 - 0.71

SAE Sieve  No.

7

8

10

12

14

16

18

20

25

30

35

40

45

50

80

Aperture

2.80

2.36

2.00

1.70

1.40

1.18

1.00

0.85

0.71

0.60

0.50

0.425

0.355

0.30

0.18