Tebea a ɛho hia sen biara no mu biako a ɛbɛma woabɛyɛ dade a ɛnyɛ den a wɔde weld ayɛ a ɛnyɛ den yiye ne sɛ wubenya weld su a ɛkorɔn. Efisɛ sɛnea weld no su kyerɛ sɛ ebia welded pipe no betumi agyina sɔhwɛ a ɛwɔ post-process no ano no ano. Common post-processes no bi ne: flattening, reducing diameter, punching ne bending, ne nea ɛkeka ho Sɛ weld no su no nyɛ den sɛnea ɛsɛ a, ɛbɛma scrap pii aba, na ɛho ka no bɛkɔ soro kɛse.
Automatic stainless steel pipe production lines abɛyɛ nea agye din kɛse wɔ nnɛyi adwumayɛbea ahorow mu. Nsaano nhwehwɛmu ntumi nkyerɛ sɛ nsu a ɛbɛtɔ anaasɛ ɛrento mu wɔ nnɔnhwerew 24 nhwehwɛmu no mu. Enti, afɛfo binom kaa saa adeyɛ yi ho asɛm pɛn. sɛ aduru a wɔde siw ano a wɔde siw ano no, . Hangao Tech (Seko Machinery) bɛkyerɛ sɛ wɔmfa adwinnade bi a wɔde ahyɛ weld no mu hwɛ. Sɛ instrument monitor no hu sɛ weld no asɛe a, buzzer no bɛbɔ alarm bi de akae adwumayɛfo sɛ wonni ho dwuma anaasɛ wɔmfa nhyɛ no agyirae.
Akwan a wɔtaa fa so sɔ hwɛ a ɛnyɛ nea ɛsɛe ade ma welds no bi ne:
(1) Ɔkwan a wɔfa so yɛ nhwehwɛmu wɔ radiographic mu (RT) .
Mprempren, ɔkwan a wɔfa so hu sɛnea radiographic mfomso hu no kɛse ne sɛ wɔde mframa a ɛkɔ mu a efi (X, γ) mframa mu no bedi dwuma de ahyɛ weld no mu ma ayɛ sini no ho mfonini, na wɔada mfomso mfonini a ɛwɔ weld no mu adi wɔ radiographic negative a wɔayɛ ho adwuma no so. Wɔde di dwuma titiriw de hwehwɛ sintɔ ahorow te sɛ pores, slag inclusions, mpaapaemu ne enterfit a enwie pɛyɛ wɔ weld no mu.
(2) ultrasonic mfomso a wohu (UT) .
Sɛ wɔde piezoelectric transducers di dwuma a, ɛma pulse vibration no nam anyinam ahoɔden a ɛkanyan ntɛmntɛm so na ɛba, na ultrasonic asorɔkye no nam acoustic coupling medium so na ɛyɛ ultrasonic asorɔkye. Sɛ ultrasonic asorɔkye hyia sintɔ ahorow bere a wɔretrɛw mu no a, ɛbɛda adi na wɔasan de akɔ transducer no mu, na afei wɔbɛdan nnyigyei a ɛbɔ no ayɛ no anyinam ahoɔden a, wobetumi asusuw beae ne sɛnea emu yɛ den a ɛwɔ adwuma no mu no ho denam susuw a wɔbɛsusuw amplitude ne bere a wɔde trɛw sɛnkyerɛnne no so no so. Ultrasonic wɔ nkate a ɛkorɔn sen radiographic mfomso a wohu, ɛyɛ nea ɛyɛ mmerɛw na ɛyɛ mmerɛw, ɛwɔ kyinhyia tiawa, ɛho ka sua, ɛyɛ adwuma yiye, na ɛnyɛ asiane biara mma onipa nipadua. Nanso, ɔhaw ahorow nso wɔ hɔ. Sɛ nhwɛso no, sintɔ ahorow a wɔda no adi no nyɛ nea ɛyɛ mmerɛw, na atemmu a ɛfa weld sintɔ ahorow ho no nyɛ nokware, a osuahu ne mfiridwuma mu nimdeɛ a adwumayɛfo a wɔhwɛ so no nya so nkɛntɛnso kɛse.
(3) Mfomso a wotumi hu (PT) .
Sɛ wɔde aduru a wɔde petepete ade mu anaasɛ fluorescent powder a wɔde petepete so anaasɛ wɔde kata weld a wɔrehwɛ no ani so a, wɔde nsu no ntini a ɛyɛ adwuma no di dwuma de ma nea ɛhyɛ mu a ɛhyɛn mu no kɔ sintɔ a ɛwɔ ɔfasu no ano a ɛbue no so wɔ weld no ani, sɛnea ɛbɛyɛ a wobehu sɛ sintɔ no da adi. Wɔde nsu a ɛkɔ mu nhwehwɛmu no di dwuma titiriw: hwɛ a ɛwɔ groove no ani, gouging surface akyi carbon arc gouging anaasɛ bere a wɔayi weld no sintɔ no akyi, ɔfasu no yiyi no denam adwinnade no ne soro no mmuee sintɔ a ɛwɔ inconvenient magnetic particle inspection fã no mu.
(4) Magnetic mfomso a wohu (MT) .
Ɔkwan a wɔfa so kyerɛw na wɔda sintɔ ahorow adi denam magnetic powder, magnetic tape anaa magnetic field susuw akwan foforo a wɔde di dwuma so ma nsakrae ba hann no mu denam magnetic nneɛma a ɛwɔ soro ne nea ɛbɛn asase ani a wɔde di dwuma so, na magnetic field a ɛretu no ba wɔ soro bere a wɔreyɛ magnetization no. Wɔde magnetic flaw detection di dwuma titiriw ma: nhwehwɛmu a wɔyɛ wɔ sintɔ ahorow a ɛwɔ soro ne nea ɛbɛn asase ani. Sɛ wɔde toto penetration detection kwan no ho a, ɛnyɛ sɛ saa kwan yi wɔ detection sensitivity a ɛkorɔn ne ahoɔhare a ɛkorɔn nko, na mmom ebetumi ahu sintɔ ahorow wɔ bun pɔtee bi mu wɔ soro.
(5) Akwan foforo a wɔfa so hu nneɛma .
Akwan foforo a wɔfa so hu nneɛma no bi ne: dadeɛ nhwehwɛmu a ɛfa adwumayɛ nneɛma akɛseɛ ho, ferrite content inspection; spectral nhwehwɛmu; Nsɔhwɛ a ɛyɛ den a wɔde fa nneɛma so; Acoustic emission sɔhwɛ, ne nea ɛkeka ho.
