steel
type: Ontology
date: 2010-05-31
version info: Final version
comment: Ontology of the Steel Industry Case Study
creator: Luis Polo
preferred namespace prefix: steel
contributor: Emilio Rubiera
contributor: Diego Berrueta
creator: Diego Daz
contributor: Pablo Valledor
publisher: ontorule-project.eu

action
type: FunctionalProperty
type: ObjectProperty
comment: This is the final assignment of a coil to an order (a customer)
range: Action
domain: Coil
sub property of: top object property

derives from
type: ObjectProperty
comment: A given phenomenon derives from a set of defects.
range: An imperfection or defect detected in the coil.
domain: Phenomenon
sub property of: top object property

has phenomenon
type: ObjectProperty
domain: Coil
range: Phenomenon
sub property of: top object property

has sampling point
type: ObjectProperty
domain: Coil
range: Sampling point
inverse of: in coil
sub property of: top object property

in coil
type: FunctionalProperty
type: ObjectProperty
comment: This property links sampling points, used by the system to measure some physical parameters such as the yield strength, to the product (a given coil).
range: Coil
domain: Sampling point
sub property of: top object property

location
type: FunctionalProperty
type: ObjectProperty
comment: A defect is detected comparing coil data with order specifications in sampling points. Thus a defect is relative to a position in the coil.
domain: An imperfection or defect detected in the coil.
range: Sampling point
sub property of: top object property

location of
type: ObjectProperty
range: An imperfection or defect detected in the coil.
domain: Sampling point
inverse of: location
sub property of: top object property

order
type: FunctionalProperty
type: ObjectProperty
comment: This is the initial assignment of a coil to an order (a customer). It will define the production goal to be validated by the rule system.
domain: Coil
range: Order
sub property of: top object property

phenomenon of
type: FunctionalProperty
type: ObjectProperty
range: Coil
domain: Phenomenon
inverse of: has phenomenon
sub property of: top object property

steel grade
type: FunctionalProperty
type: ObjectProperty
domain: Coil
range: Product type
sub property of: top object property

top object property
type: ObjectProperty

average flattener elongation
type: DatatypeProperty
type: FunctionalProperty
domain: Coil
sub property of: coil property
range: float

average skin-pass elongation
type: DatatypeProperty
type: FunctionalProperty
domain: Coil
sub property of: coil property
range: float

average temperature
type: DatatypeProperty
type: FunctionalProperty
domain: Coil
sub property of: coil property
range: float

coil identifier
type: DatatypeProperty
type: FunctionalProperty
comment: Unique identifier of the product.
domain: Coil
sub property of: coil property
range: integer

coil property
type: DatatypeProperty
domain: Coil
sub property of: top data property

flattener elongation
type: DatatypeProperty
type: FunctionalProperty
domain: Sampling point
sub property of: sampling point property
range: float

length scope
type: DatatypeProperty
type: FunctionalProperty
comment: Length of the coil in which the sampling applies. It is associated to a single coil sampling point.
domain: Sampling point
sub property of: sampling point property
range: float

position
type: DatatypeProperty
type: FunctionalProperty
comment: Position of the coil where a sampling is performed. There is a sampling point each 10 meters from the head to the tail of the coil, so the position indicates the distance in meters from the head to a given sampling point.
domain: Sampling point
sub property of: sampling point property
range: float

product type code
type: DatatypeProperty
type: FunctionalProperty
domain: Product type
range: string
sub property of: top data property

sampling point property
type: DatatypeProperty
domain: Sampling point
sub property of: top data property

skin-pass elongation
type: DatatypeProperty
type: FunctionalProperty
domain: Sampling point
sub property of: sampling point property
range: float

skin-pass elongation maximum
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

skin-pass elongation minimum
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

target parameter
type: DatatypeProperty
domain: Order
sub property of: top data property

temperature
type: DatatypeProperty
type: FunctionalProperty
domain: Sampling point
sub property of: sampling point property
range: float

temperature maximum
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

temperature minimum
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

thickness target
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

weight maximum
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

weight minimum
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

width target
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

yield strength
type: DatatypeProperty
type: FunctionalProperty
comment: This parameter is calculated in every sampling point along the coil. So the yieldStrength is associated with a given sampling point to allow the comparison with the yieldStrength value of the target specified in the order. Deviations from the target imply a defect in the coil.
domain: Sampling point
sub property of: sampling point property
range: float

yield strength upper tolerance
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

yield strength lower tolerance
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

zinc thickness target
type: DatatypeProperty
type: FunctionalProperty
sub property of: target parameter
range: float

top data property
type: DatatypeProperty

Action
type: Class
comment: This category comprises the actions to be done with the product after the system has completed its evaluation

Clinching
type: Class
subclass of: Product type
comment: Clinching steels are those obtained by a non-continuous method of joining whereby the points of joinage are produced by punching two or more steel sheets together simultaneously by means of a punch and die.

Coil
type: Class
comment: A coil is a physical object which is the metallurgical product to be analysed during the process.

An imperfection or defect detected in the coil.
type: Class
label: Defect

Dual-phase steel
type: Class
subclass of: Product type
comment: Dual-phase steel (DPA) is a high-strength steel that has a ferrite and martensitic microstructure. DPA starts as a low or medium carbon steel and is quenched from a temperature above A1 but below A3 on a continuous cooling transformation diagram. This results in a microstructure consisting of a soft ferrite matrix containing islands of martensite as the secondary phase (martensite increases the tensile strength). It features advantages such as low yield strength;low yield to tensile strength ratio (yield strength / tensile strength = 0.5); high initial strain hardening rates; good uniform elongation; high strain rate sensitivity (the faster it is crushed the more energy it absorbs); and good fatigue resistance.

High-strength low-alloy steel
type: Class
subclass of: Product type
comment: High-strength low-alloy (HSLA) steel is a type of alloy steel that provides better mechanical properties or greater resistance to corrosion than carbon steel. HSLA steels vary from other steels in that they aren't made to meet a specific chemical composition, but rather to specific mechanical properties. They have a carbon content between 0.05?0.25% to retain formability and weldability.

Intertitial free metallurgy steel
type: Class
subclass of: Product type
comment: Steels designed to provide an excellent combination of drawability and mechanical strength based on their specific interstitial free (IF) metallurgy. These steels are hardened by adding manganese, silicon and phosphorous in solid solution to the ferrite. The metallurgy of IF steels optimizes their drawability.

Mechanical defect
type: Class
subclass of: An imperfection or defect detected in the coil.
disjoint with: Surface aspect defect
comment: A defect having to do with the mechanical process.

Mechanical phenomenon
type: Class
subclass of: Phenomenon
disjoint with: Surface aspect phenomenon
comment: An effect detected in the coil related to the mechanical process.

Order
type: Class
comment: An order defines the target specifications of the product. The order also specifies the tolerance allowed with respect to the target parameters.

Parameter defect
type: Class
subclass of: Mechanical defect
comment: It is a defect having to do with a deviation of the measured skin-pass elongation, flattener elongation or temperature from the specified values.

Phenomenon
type: Class
comment: An effect detected in the coil, based on the identified defects along the coil sampling points.

Product type
type: Class
comment: The type identifies the kind of steel, defined by a set of physical and chemical properties

Rephosphorised steel
type: Class
subclass of: Product type
comment: It is a kind of steel that contains phosphorus as its main alloying agent.

Sampling point
type: Class
comment: A sampling point is an abstract concept which represents a given location within a coil where some physical parameters are measured.

Skin-pass elongation defect
type: Class
subclass of: Mechanical defect
comment: A skin-pass elongation defect has to do with any deviation of the measured skin-pass elongation from the requirements for the product.

Skin-pass elongation phenomenon
type: Class
subclass of: Mechanical phenomenon
comment: An effect detected in the coil related to the skin-pass elongation.

Surface aspect defect
type: Class
subclass of: An imperfection or defect detected in the coil.
comment: A defect found in the surface of the coil.

Surface aspect phenomenon
type: Class
subclass of: Phenomenon
comment: An effect detected in the coil specifically on the surface of the product.

Temperature defect
type: Class
subclass of: Mechanical defect
comment: It is a defect having to do with temperature issues. At the exit of the furnace it is necessary to check the temperature ranges of the steel strip, depending on the maximum and minimum end of heating temperature set by the order (measured in �C) and the steel grade.

Temperature phenomenon
type: Class
subclass of: Mechanical phenomenon
comment: An effect detected in the coil related to the temperature.

Yield strength defect
type: Class
subclass of: Mechanical defect
comment: It is a mechanical defect having to do with the target yield strength. A defect of this category is identified if the yield strength is outside of the target range at any point.

Yield strength phenomenon
type: Class
subclass of: Mechanical phenomenon
comment: An effect detected in the coil related to the yield strength.

A200
type: Dual-phase steel
type: NamedIndividual
type: Thing
product type code: A200

B102
type: Intertitial free metallurgy steel
type: NamedIndividual
type: Thing
product type code: B102

B105
type: Intertitial free metallurgy steel
type: NamedIndividual
type: Thing
product type code: B105

C114
type: Rephosphorised steel
type: NamedIndividual
type: Thing
product type code: C114

C116
type: Rephosphorised steel
type: NamedIndividual
type: Thing
product type code: C116

C119
type: Rephosphorised steel
type: NamedIndividual
type: Thing
product type code: C119

D012
type: High-strength low-alloy steel
type: NamedIndividual
type: Thing
product type code: D012

D071
type: High-strength low-alloy steel
type: NamedIndividual
type: Thing
product type code: D071

K012
type: Clinching
type: NamedIndividual
type: Thing
product type code: K012

evaluation
type: Action
type: NamedIndividual
type: Thing
comment: The coil is sent to experts when it is not clear whether it meets order requirements

Keep assignment
type: Action
type: NamedIndividual
type: Thing

repair
type: Action
type: NamedIndividual
type: Thing
comment: When the quality of coil is low but it could be repaired, it is sent again to the production line.

scrap
type: Action
type: NamedIndividual
type: Thing
comment: When the quality of the coil is very low, it is sent to scrap