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发表于 11-22 13:15:01
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WPS和PQR都是舶来品" d) u7 M* W' M- S
一般企业弄个小气焊啥的哪里知道这玩意...但是做过大型钢构、工程焊接、压力容器焊接的就肯定知道是什么东西了
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查US的资料对于氧压表的管理要求无非:/ x9 `9 V8 {$ i& E5 ?0 t" B' c
Care of Gauges' ?; L/ o5 W$ p0 m8 z) m* p
Gauges should be given the care afforded to any precision instrument." m! v5 ?' r: ]5 O) ?; c2 V
(1) To avoid the possibility of an explosion, never permit oil to get into any oxygen apparatus.
0 g8 }( p7 B ^8 x2 M0 K7 r# k(2) Never apply pressures to gauges suddenly. Open valves on cylinders slowly. K9 T d: F( N, i, H
(3) Do not apply pressures to the full scale of the dial.6 q9 a, s* j: E* {* x$ m c- z6 }+ L
(4) Do not apply full tank pressures with the regulating screw on reducing valves which are screwed all
9 b: M9 [! |, `& t4 R$ _9 q" [7 B) gthe way in. Increase the pressure on low-pressure gauges slowly.. R2 a$ R+ f4 a
(5) When installing gauges to apparatus, do not attach a wrench on the pipe threads; use the square2 z4 F+ F+ L4 L: ]
above the pipe threads.
' P# C& }! b+ H {* W(6) Handle gauges with care. The mechanism can be damaged or destroyed if they are bumped, jammed2 M4 i& v( i! g
or allowed to fall on the floor.5 |8 I' ?3 h# D
(7) A gauge that is giving incorrect readings can be a hazard. Do not try to repair a defective gauge. Take it to an authorized gauge repair shop.
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1 I$ `8 @ H% r) X4 M: Q! v至于calibration的要求,也仅在自动焊接系统、超声波探伤等方面提出要求2 e! Y/ N" k, X" T
当然,老美的东西不见得符合中国的国情,但是实际上我们国家的国标,大部分是抄过来的,大家心里也清楚...而且很多修改也不过是改得更低一点而已.../ u+ \( N) {, x4 a) p# h, z4 y
& Q2 `9 B5 U) [要知道一个氧压表是否准确,有时候很简单,指针能不能归零?自建检查档案?4 h8 ?) I. r7 J! r' G/ @
3 z6 S6 W, O$ P5 C坏了的氧压表要么修、要么换. `2 @9 i: s1 N8 j- `
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虽然说从安全角度出发是为企业负责的一种表现,但是只是强调自认的安全,而忽视企业的感受和承受,是真正的为企业负责吗?谁说一定要检定才能保证安全呢?尤其是这种无法找到明确依据,只能凭借个人理解的“猜测”?4 D4 n5 K* @1 E3 S. z6 _/ q/ |
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