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STATISTICAL CONTROL OF PRODUCTION PROCESSES, ANALYSIS
OF THE MEASUREMENT SYSTEM
Makhmudov Abdumajid Odiljon o‘g‘li
Andijan State Technical Institute
Metralogy, standardization and quality management specialist magstrant
Annotation:
this article covers the improvement of the concepts of responsibility
and commitment of enterprises producing basalt products in the satisfaction of demand
and desire of their consumers and stakeholders, as well as in the achievement of their
involvement in the provision of products and services. It is written that the organization
and manufacturing enterprises make a strategic decision in applying a Quality
Management System that can help improve the results of their activities and provide
initiatives with a solid foundation, designed for Sustainable Development. International
standards for the production of their products are covered by the application of
requirements to determine the possibility of processes and what advantages statistical
methods give the organization.
Keywords.
ISO 9001, IATF 16949, SPC, technological capabilities (cpk, RpK),
international standards, quality, Basalt, thermal insulation building materials, audit,
xaqaro certificate, World Trade Organization (WTO) and other.
INTRODUCTION
It follows that the decree of the president of the Republic of Uzbekistan dated
February 7, 2017 PF-4947 “on approval of the strategy of action for further development
of the Republic of Uzbekistan”separately noted the liberalization and simplification of
the economy, diversification of export composition and geography, and set out tasks for
conducting negotiations on the entry of Uzbekistan into the WTO as a member state [1].
In particular:
- liberalization of the economy and regulation of the level development of
industries;
- regulation of price and establishment of an acceptable tax system;
- maintenance of subsidies in individual sectors and production;
- regulation of the system of standardization and certification of goods;
- increase the attractiveness of foreign investments;
- regulation of the tariff of import and export duty payments.
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In this regard, such tasks as regulating the system of standardization and
certification of goods, ensuring the quality of products, constant improvement are also
one of the most important and urgent tasks in the construction industry.
In this regard, such tasks as regulating the system of standardization and certification of
goods, ensuring the quality of products, constant improvement are also one of the most
important and urgent tasks in the construction industry.
Currently, a defect prevention strategy is effective. One effective method used to prevent
inconsistency in technological processes is the SPC (Statistical Process Control) process
statistical management method, developed in the 1960s by the US (AIAG) automotive
industry standardization group and the (ASQC) American Society for quality management
automotive division.
In each product quality management system, statistical methods of quality control are
considered the most perfect methods. Different from the statistical methods of adjusting
technological processes, the state of the process is concluded on the basis of control results.
Judging by the results of the control, it is decided whether to accept a batch of products
or not. If, when configuring technological processes, the determination of the unit is adjusted
in the range of specified times or statistical methods of the numbered unit of products, or vice
versa, it is necessary to combine them in a statistical method based on the selected control
when finding the unit of the product.
LITERATURE ANALYSIS AND METHODOLOGY
In 1990, Chrysler, Ford, and General Motors agreed with AIAG, the company's supplier
certification and Quality Assessment Team, which developed the SPC method as a guide and
began requiring the application to conveyors. The manual has been updated by the
standardization group with several additions from 1992 and over the years to this day, IATF
16949:2016 the automotive industry quality management system requires those under
paragraphs 9.1.1.2 and 9.1.1.3 of the international standard:
statistical methods (SPC – control cards) according to each process to be defined in the
future product quality planning and management plan (APQP / SR);
the key concepts are the ability to handle (variation), stability (stability), the possibility
of processes (Cpk, Ppk), and the fact that over – tuning is accessible and accessible to all by
Organization.
Discussion
It is necessary to choose quality indicators for the control card. They can be indicators
that mainly affect the function of the product, part, node or service. SPC methods must first
be introduced to those that help to fix process data, products, services or processes in a unit
of time, as well as to ensure quality and stability (stability)affect decisions.
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Cpk-ctabil process is smaller than the repeatability index;
d
R
CL
L
X
d
R
X
UCL
−
−
−
−
2
2
/
3
)
(
/
3
)
(
Ppk-suitability index is smaller than;
−
−
s
s
CL
L
X
X
UCL
3
)
(
3
)
(
C-the number of inconsistencies in the group;
C
- mean value for all s-groups;
u
- the number of inconsistencies with respect to the unit of the group;
u
- It does not have to be a homogeneous volume, the average number of
inconsistencies with respect to the unit of selection;
Conclusion
Today, one of the main tasks on the way to becoming a member of the entire joxon
Trade Organization WTO (World Trade Organization) is one of the indicators of the
introduction of international standards into the enterprise. In this context, SPs expressed
the need to use process statistical control (). At present, it is important to improve quality
and productivity in the global system of production and delivery of products and to
reduce spending in the supply chain.
REFERENSEC
1.
O‘zbekiston Respublikasi Prezidentining 07.02.2017 yildagi PF-4947-son
“O‘zbekiston Respublikasini yanada rivojlantirish bo‘yicha harakatlar strategiyasi
to‘g‘risida” gi farmoni.
2.
O‘zDSt IATF 16949:2019 Sifat Menejmenti Tizimlari. Avtomobilsozlik sanoati
va unga butlovchi qismlar ishlab chiqaruvchi tashkilotlar uchun sifat menejment tizimi
talablari. Xalqaro avtomobilsozlik sifat menejmenti standarti (IATF 16949:2016, IDT).
3.
https://uzsm.uz/uz/press_center/news
UCL - Upper Central Line
CL - Central Line
LCL - Low Central Line
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4.
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Mamajonov, A. A., & Maxmudov, A. O. (2025). BAZALT MAHSULOTLARI
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MUHIMLIGI. МОЯ ПРОФЕССИОНАЛЬНАЯ КАРЬЕРА.
Международная научно-
SYNAPSES:
Insights Across the Disciplines
ISSN: 3060-4737 Volume 2, Issue 6 IF(Impact Factor) 10.92 / 2024
195
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Insights Across the Disciplines
образовательная
электронная
библиотека
(НЭБ)«МОЯ
ПРОФЕССИОНАЛЬНАЯ КАРЬЕРА»
, (68 (том 2)).
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Maxmudov, A. O., & Mamajonov, A. A. (2025). SIFAT MENEJMENT
TIZIMINING JORIY ETISHNING USTUNLIGI.
Международная научно-
образовательная электронная библиотека (НЭБ)«МОЯ ПРОФЕССИОНАЛЬНАЯ
КАРЬЕРА»
, (69. Том 1).
