HEAT TREATMENT

CONFORTQUALITYRESISTANCEHARDNESSELASTICITY
Heat Treatment

A MATTER OF TRUST

Haertha is specialized in the heat treatment of steel. Heat treatment is used to modify the steel properties and characteristics through the heating and cooling temperatures and controlled environment, altering mechanical properties including: strength, hardness, elasticity, etc., depending on the thermal mechanical characteristics of the material itself.
Comfort and quality is what Haertha offers today. Through the latest furnace technology, has a diversity of heat treatment applied especially in the molds and mechanical.

Haertha has an industrial laboratory to ensure perfect quality.
A team of qualified specialists ensures excellent heat treatment and gives you the flexibility and speed needed to meet the most demanding deadlines.

Production Control

QUALITY

Investment in advanced technology equipment, high flexibility and productivity, and the implementation and maintenance of a system of quality management, according to NP EN ISO 9001: 2008, allows to improve the quality of processes and services, and improve customer focus.

Services

TYPES OF TREATMENT

Haertha offers multiple types of services related to the heat treatment of steels. The following is a brief description of each.

Hardening

It is a treatment that aims to increase the hardness of steel by altering its structure. It involves heating the steel to controlled temperatures defined by steelmakers for treatment (which depends on the composition, size and chemical form) in a controlled atmosphere furnace, followed by a quench injecting nitrogen. The material acquires a martensitic structure with much higher hardness.
Stress Relieving
Material predisposed to deformation with several sections, machining parts and difficult parts in the hardening, must undergo a stress relief after buffing or just before the finish or pre-machining, in order to minimize the deformation in the hardening. It involves heating followed by slow cooling without changing the original qualities of the material.

Stress Relieving

Material predisposed to deformation with several sections, machining parts and difficult parts in the hardening, must undergo a stress relief after buffing or just before the finish or pre-machining, in order to minimize the deformation in the hardening. It involves heating followed by slow cooling without changing the original qualities of the material.

Temper

Tempering is done to increase the toughness (resistance to strong pressure without rupture) after hardening the material. The increase toughness is obtained on one side by removing stresses produced in the hardening and secondly by relaxing the structure through quenching with a consequent reduction in the hardness obtained after hardening. The correct temperature and the treatment time depends on the hardness of quenching and mechanical properties required by the material.

Nitriding

It is a thermochemical surface treatment which improves hardness in the material by diffusion of nitrogen (N2) and ammonia (NH3).
Global Satisfaction

Customer Feedback

Technology

MAIN EQUIPMENT

A highly qualified team, constant innovation and heavy investment in new technologies made Haertha a safe partner for all mechanical engineering problems.

1 Furnace:

Cooling gas quenching
Capacity: 900x600x600 – 1000 Kg

1 Furnace:

Cooling gas quenching
Capacity: 1200x900x700 – 2000 Kg

2 Furnaces:

Temper, Annealing, Stress relieving, Nitriding, Oxidation
Capacity: 1200x900x900 – 2000Kg

1 Moufla:

700x400x400

1 Moufla

550x700x950
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Technology

MAIN EQUIPMENT

Other Services

LOGISTICS

Haertha has a logistics service that reduces the time delivery of the material to heat treatment. Haertha provides a low-cost solution, with special attention to quality and customer satisfaction.

Other Services

LOGISTICS

Significant Events

RECENT ISSUES OF THE COMPANY

Over time we always try to improve our services and achieve higher levels of quality.
 One of the strategic objectives is to achieve a leading position in the Iberian market.

99,7%

COMPLIANCE DEADLINES

PERMANENT

MONITORING OF CUSTOMER SATISFACTION

760.000 Kg

ANUAL AMOUNT OF MATERIAL FOR TREATMENT
Contact

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haertha_min

Phone: +351 234 690 270

Mobile Phone: +351 913 470 329

Fax: +351 234 690 279

E-mail: geral@haertha.pt

Site: www.haertha.pt

GPS : 40º 35´06.0´´N       8º 27´57.0´´W