IMDSでデータを作成する際は、まず材料を先に入力するところから始めます。法規や規制に対応するためにも、材料は均質である必要があります。“均質”とは、機械的に複数以上の異なる材料へ分離できない一貫した材料組成のことです。“均質”の詳細な定義はレコメンデーションIMDS 001 Annex I, 1.1節をご参考ください。
In most heat treatments, you do not change the chemistry of the product – see below for specifics. However, due to the necessity of having the information in the system, lack of change does not exempt the supplier that heat treats from entering data. In an austempering process you don’t change the chemical composition. It is an isothermal heating process so there is no change to the original MDS. The nitriding and case hardening processes are a thermal process where N (Nitrogen) and/or C (Carbon) is diffusing into the the steel. The result is a inhomogenuous concentration of N and/or C in a thin surface layer (about 100 µm thickness in a nitriding and 1 mm in the case hardening process). Due to the inhomogenuous destribution, the concentration of N or C depend on the depth and cannot be described in IMDS. Since Nitrogen and Carbon are not elements which are declarable or prohibited or can be a source for danger in the handling or recycling process, the SC decided in this special case that Nitriding or Case Hardening need not be reported in IMDS.
How to develop an MDS:
In the above cases of austempering, nitriding and case hardening, there is no specific material that needs to be created.
How to handle in IMDS:
The company that does the treatment receives a component (or semi-component) in IMDS from the company that supplies the part in the physical supply chain with forwarding allowed.
The company that does the treatment creates a copy/forward of the received component (or semi-component) and adds the recipient information (being very careful with the part number and supplier code as you cannot make another copy/forward) and sends to the customer.
If the supplier of the part and the customer is the same, it is then up to the customer to determine whether the company that performs the treatment needs to report.
部品に対して熱処理を行っているのみの場合、報告する必要がありますか？
(英語)
The short answer is yes although you may not have to do much more than forward what you receive with a change of part number. The reason – the flow of information through IMDS companies needs to mimic the flow of product through the supply chain. In the case where you get a part from your customer and send back to your customer, there is usually a part number change between an unprocessed part and a processed part in your customer’s system. The only way to account for this in IMDS is to have a submission for that part.
In the case where you get a part from a supplier and send to a customer, your customer has a relationship with your company and not your supplier. They may not even have your supplier in their database. As to how to construct an MDS, please see the FAQ on Austempering and Nitriding below.
