paunang salita
ISO (International Organization para sa Standardisasyon) ay isang pandaigdigang alyansa ng mga pambansang pamantayan katawan (Mga katawan ng miyembro ng ISO). Ang pagbuo ng mga internasyonal na pamantayan ay karaniwang isinasagawa sa pamamagitan ng ISO teknikal na komite. Ang bawat institusyon ng miyembro na interesado sa isang paksa kung saan itinatag ang isang teknikal na komite ay may karapatang kumatawan sa komiteng iyon. Ang mga internasyonal na organisasyon ng pamahalaan at di pamahalaan na nakikipag ugnayan sa ISO ay kasangkot din sa gawaing ito. ISO ay gumagana nang malapit sa International Electrotechnical Commission (IEC) sa lahat ng bagay ng electrotechnical standardization.

International pamantayan ay drafted alinsunod sa mga patakaran na ibinigay sa Bahagi 2 ng Direktiba ng ISO / IEC.

Ang pangunahing gawain ng komite ng teknikal ay upang itakda ang mga internasyonal na pamantayan. Ang draft international standards na pinagtibay ng Technical Committee ay ipapakalat sa mga miyembro ng katawan para sa pagboto. Ang paglalathala bilang isang internasyonal na pamantayan ay nangangailangan ng pag apruba ng hindi bababa sa 75% ng mga katawan ng miyembro.

Mangyaring tandaan na ang ilang mga nilalaman ng dokumentong ito ay maaaring sumailalim sa mga karapatan sa patent. Ang ISO ay hindi mananagot para sa pagtukoy ng anuman o lahat ng naturang patente.

ISO 4526 was developed by Technical Committee ISO/TC 107, Metallic and Other Inorganic Coatings, Subcommittee SC 3, Electrodeposited Coatings and Related Finishes.

The second edition cancelled and replaced the technically revised first edition (ISO 4526:1984).

ISO 4526-2004 “Nickel electroplating for metal cladding engineering”

ipakilala ang
Engineered nickel coatings are specified for a variety of applications, such as increased hardness, wear and corrosion resistance, load-bearing characteristics, heat and scale resistance, corrosion fatigue resistance, and other improvements in surface properties. Electrodeposited nickel is also used in engineering applications to rescue worn or improperly processed finished products and is used in combination with other metal coatings as a diffusion barrier. Engineered nickel coatings typically contain more than 99% nickel and are usually electrodeposited by addition-free solutions of watt or nickel sulfonate. Typical solution compositions, mga kondisyon ng pagpapatakbo, and mechanical properties of electrical deposits for these solutions are given in Appendix A.

Organic additive particles (such as silicon carbide, tungsten carbide, alumina, chromium carbide, and other substances) can be introduced into these solutions when it is necessary to increase hardness, improve wear resistance, modify stress values within the sediment, and enhance leveling characteristics. Sulfur-containing organic additives should be used to increase hardness and reduce residual internal stress only if the end use involves exposure to low or moderate temperatures. High temperature exposure of nickel coatings containing sulfur may lead to embrittlement and cracking of coatings. The effect is time-dependent and may become noticeable at 150°C if heated long enough.

One noteworthy trend is the increasing use of nickel alloy plating process in engineering applications. These include binary alloys of nickel with cobalt, iron, manganese, molybdenum, phosphorus and tungsten.

1 saklaw
This standard specifies requirements for electroplated nickel and nickel alloy coatings of ferrous and non-ferrous base metals used for engineering purposes.

Binary nickel alloys where nickel is a minor component are excluded from the scope of this standard.

The designation provides a means of specifying the type and thickness of nickel and nickel alloy coatings suitable for engineering applications.

ISO 4526-2004 “Nickel electroplating for metal cladding engineering”

2 Mga reperensyang normatibo
The following reference documents are not available or available for use in this document. Para sa mga petsang sanggunian, angkop ang mga bersyon na may pagbanggit lamang. Para sa mga walang petsang sanggunian, ang bagong bersyon ng sanggunian (kasama ang anumang mga rebisyon) angkop.

ISO 1463, metallic and oxide coatings – Pagsukat ng kapal ng patong – Microscopic method

ISO 2064, Metallic and other Inorganic coatings – Definitions and practices relating to thickness measurement

ISO 2079, Surface treatments and metallic Coatings – General classification of terms

ISO 2080, Electroplating and related processes — Bokabularyo

– ISO 2177, metallic coatings – Pagsukat ng kapal ng patong – anode dissolution Coulomb method

– ISO 2361, electrolytic nickel coatings on magnetic and non-magnetic substrates – Pagsukat ng kapal ng patong – Magnetic methods

ISO 2819, Metallic Coatings on Metallic substrates – Electrodeposited and chemically deposited coatings – examines methods that may be used to test adhesion

ISO 3497, metallic coatings – Pagsukat ng kapal ng patong – X-ray spectroscopy

– ISO 3543, metallic and non-metallic coatings – Measurement of thickness – beta backscattering method

– ISO 3882, Metallic and other Inorganic Coatings – Review of thickness measurement methods

ISO 4516, Metal at iba pang mga inorganic coatings — Vickers and Knower microhardness tests

– ISO 4519, Electrodeposited metallic coatings and associated finishes – Sampling procedure for inspection by attribute

– ISO 8401, Metallic Coatings – Review of ductility measurement methods

– ISO 9220, Metallic coatings – Pagsukat ng kapal ng patong – scanning electron microscopy

– ISO 9587, Metal at iba pang mga inorganic coatings – Pretreatment of iron or steel to reduce the risk of hydrogen embrittance

– ISO 9588, Metallic and other Inorganic Coatings — Post-treatment of iron or steel coatings to reduce hydrogen embrittleness risk

ISO 10289, Corrosion test methods for metallic and other inorganic coatings on metallic substrates – Rating of specimens and finished products subjected to corrosion tests

ISO 10587, Metal and other inorganic coatings – Residual embrittlement test for metal-coated and uncoated external threaded articles and bars – inclined wedge method

– ISO 12686, Metal at iba pang mga inorganic coatings – Automatic controlled shot peening of metallic products prior to nickel, autocatalytic nickel or chromium plating or as a final finish

– ISO 15724, Metals and other inorganic coatings – Electrochemical measurement of diffusible hydrogen in steel – barnacle electrode method

EN 12508, Corrosion protection of metals and alloys – Paggamot sa ibabaw, metallic and other inorganic coatings – Bokabularyo

3 Mga Tuntunin at Kahulugan
Para sa mga layunin ng dokumentong ito, ang mga termino at kahulugan na ibinigay sa ISO 2064, ISO 2079, ISO 2080 at EN 12508 apply.

Ang standard information section lamang ang pampubliko. Upang makita ang buong nilalaman, kailangan mong bilhin ang pamantayan sa pamamagitan ng mga opisyal na channel.